# questions

title: which-of-the-following-compounds-contain-all-the-carbon-atoms-in-the-same-hybridisation-state
slug: which-of-the-following-compounds-contain-all-the-carbon-atoms-in-the-same-hybridisation-state-64815
tags: ['Chemistry', 'Hydrocarbons', 'BITSAT', 'BITSAT 2019']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following compounds contain all the carbon atoms in the same hybridisation state</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">H</mi><mo>-</mo><mi mathvariant="normal">C</mi><mo>≡</mo><mi mathvariant="normal">C</mi><mo>-</mo><mi mathvariant="normal">C</mi><mo>≡</mo><mi mathvariant="normal">C</mi><mo>-</mo><mi mathvariant="normal">H</mi></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>3</mn></msub><mo>-</mo><mi mathvariant="normal">C</mi><mo>≡</mo><mi mathvariant="normal">C</mi><mo>-</mo><msub><mi>CH</mi><mn>3</mn></msub></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>2</mn></msub><mo>=</mo><mi mathvariant="normal">C</mi><mo>=</mo><msub><mi>CH</mi><mn>2</mn></msub></math></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>2</mn></msub><mo>=</mo><mi>CH</mi><mo>-</mo><mi mathvariant="normal">C</mi><mo>≡</mo><mi>CH</mi></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">H</mi><mo>-</mo><mi mathvariant="normal">C</mi><mo>≡</mo><mi mathvariant="normal">C</mi><mo>-</mo><mi mathvariant="normal">C</mi><mo>≡</mo><mi mathvariant="normal">C</mi><mo>-</mo><mi mathvariant="normal">H</mi></math></span> </div>

answer:
<div class="solution"><p>Key idea <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>pi</mi></math>-bond do not participate in hybridisation</p><p>In H−C≡C−C=−H all carbon atoms are in same hybridization state i.e., spâ hybridized.</p><p>a. <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">H</mi><mo>-</mo><mover><mi mathvariant="normal">C</mi><mi>sp</mi></mover><mo>≡</mo><mover><mi mathvariant="normal">C</mi><mi>sp</mi></mover><mo>-</mo><mover><mi mathvariant="normal">C</mi><mi>sp</mi></mover><mo>≡</mo><mover><mi mathvariant="normal">C</mi><mi>sp</mi></mover><mo>-</mo><mi mathvariant="normal">H</mi></math></p><p>b. <math xmlns="http://www.w3.org/1998/Math/MathML"><mover><msub><mi>CH</mi><mn>3</mn></msub><msup><mi>sp</mi><mn>3</mn></msup></mover><mo>-</mo><mover><mi mathvariant="normal">C</mi><mi>sp</mi></mover><mo>≡</mo><mover><mi mathvariant="normal">C</mi><mi>sp</mi></mover><mo>-</mo><mover><msub><mi>CH</mi><mn>3</mn></msub><msup><mi>sp</mi><mn>3</mn></msup></mover></math></p><p>c. <math xmlns="http://www.w3.org/1998/Math/MathML"><munder><msub><mi>CH</mi><mn>2</mn></msub><msup><mi>sp</mi><mn>2</mn></msup></munder><mo>=</mo><munder><mi mathvariant="normal">C</mi><mi>sp</mi></munder><mo>=</mo><mover><msub><mi>CH</mi><mn>2</mn></msub><msup><mi>sp</mi><mn>2</mn></msup></mover></math></p><p>d. <math xmlns="http://www.w3.org/1998/Math/MathML"><munder><msub><mi>CH</mi><mn>2</mn></msub><msup><mi>sp</mi><mn>2</mn></msup></munder><mo>=</mo><munder><mrow><mi>CH</mi><mo>-</mo></mrow><msup><mi>sp</mi><mn>2</mn></msup></munder><munder><mi mathvariant="normal">C</mi><mi>sp</mi></munder><mo>≡</mo><munder><mi>CH</mi><mi>sp</mi></munder></math></p></div>


title: which-of-the-following-compounds-has-wrong-iupac-name-1
slug: which-of-the-following-compounds-has-wrong-iupac-name-1-21647
question: <div class="question">Which of the following compounds has wrong IUPAC name?</div>
tags: ['Chemistry', 'General Organic Chemistry', 'BITSAT', 'BITSAT 2014']
answer: <div class="solution">No Solution</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/iG1Y8zlNZScTEwy15la1xLqf-_8UNGcRKU_vAXZoeuA.original.fullsize.png"/></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/2nzvE1eHqMcqS_npC2bNR5QUSO8kO19fXDnLhyXUDzU.original.fullsize.png"/></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/UIeBUfVDVcDljl7nRI54mG2HEHMwP4PHuLLLcWPwZLg.original.fullsize.png"/></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/kgySC1XpnvKCp8dPNmjSFIvuYuClDwoEPzTzX0wQ-5k.original.fullsize.png"/></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/UIeBUfVDVcDljl7nRI54mG2HEHMwP4PHuLLLcWPwZLg.original.fullsize.png"/></span> </div>


title: which-of-the-following-compounds-is-thermodynamically-is-the-most-stable
slug: which-of-the-following-compounds-is-thermodynamically-is-the-most-stable-75091
tags: ['Chemistry', 's Block Elements', 'BITSAT', 'BITSAT 2022']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following compounds is thermodynamically is the most stable?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data"> <br/>$\mathrm{BaCO}_3$
<br/></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data"> <br/>$\mathrm{MgCO}_3$
<br/></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"> <br/>$\mathrm{SrCO}_3$
<br/></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"> <br/>$\mathrm{CaCO}_3$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"> <br/>$\mathrm{BaCO}_3$
<br/></span> </div>

answer:
<div class="solution">The thermal stability of carbonates increases down the group. So, the order of thermal stability of carbonates of alkaline earth metals is
<br/>$$
<br/>\mathrm{BaCO}_3&gt;\mathrm{CaCO}_3&gt;\mathrm{MgCO}_3&gt;\mathrm{BeCO}_3 .
<br/>$$
<br/>Therefore, $\mathrm{BaCO}_3$ is thermodynamically most stable and $\mathrm{BeCO}_3$ is least stable.</div>


title: which-of-the-following-compounds-on-reaction-with-naoh-and-na-2-o-2-gives-yellow-colour
slug: which-of-the-following-compounds-on-reaction-with-naoh-and-na-2-o-2-gives-yellow-colour-96302
tags: ['Chemistry', 'Practical Chemistry', 'BITSAT', 'BITSAT 2019']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following compounds, on reaction with <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>NaOH</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Na</mi><mn>2</mn></msub><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub></math> gives yellow colour?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Zn</mi><msub><mfenced><mi>OH</mi></mfenced><mn>2</mn></msub></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Al</mi><msub><mfenced><mi>OH</mi></mfenced><mn>3</mn></msub></math></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Cr</mi><msub><mfenced><mi>OH</mi></mfenced><mn>3</mn></msub></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CaCO</mi><mn>3</mn></msub></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Cr</mi><msub><mfenced><mi>OH</mi></mfenced><mn>3</mn></msub></math></span> </div>

answer:
<div class="solution"><p>Chromium hydroxide, i.e.<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Cr</mi><msub><mfenced><mi>OH</mi></mfenced><mn>3</mn></msub></math> when reacts with <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>NaOH</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Na</mi><mn>2</mn></msub><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub></math>, gives yellow colour of sodium chromate. The whole reaction is as follows</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>3</mn><msub><mi>Na</mi><mn>2</mn></msub><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub><mo>+</mo><mn>2</mn><mi>Cr</mi><msub><mfenced><mi>OH</mi></mfenced><mn>3</mn></msub><mo>⟶</mo><munder><mrow><mn>2</mn><msub><mi>Na</mi><mn>2</mn></msub><msub><mi>CrO</mi><mn>4</mn></msub></mrow><mrow><mo>(</mo><mi>yellow</mi><mo>)</mo></mrow></munder><mo>+</mo><mn>2</mn><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mo>+</mo><mn>2</mn><mi>NaOH</mi></math></p></div>


title: which-of-the-following-diatomic-molecules-would-be-stabilised-by-the-removal-of-an-electron
slug: which-of-the-following-diatomic-molecules-would-be-stabilised-by-the-removal-of-an-electron-78263
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2018']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following diatomic molecules would be stabilised by the removal of an electron?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">C</mi><mn>2</mn></msub></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>CN</mi></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">N</mi><mn>2</mn></msub></math></span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub></math></span> </div>

answer:
<div class="solution">In <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub></math>, molecule, last two electrons are present in anti bonding<br/>orbitals.<br/><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub><mfenced><mrow><mn>8</mn><mo>+</mo><mn>8</mn><mo>=</mo><mn>16</mn></mrow></mfenced><mo>=</mo><mi mathvariant="normal">σ</mi><mn>1</mn><mo> </mo><msup><mi mathvariant="normal">s</mi><mn>2</mn></msup><mo>,</mo><msup><mi mathvariant="normal">σ</mi><mo>*</mo></msup><mn>1</mn><mo> </mo><msup><mi mathvariant="normal">s</mi><mn>2</mn></msup><mo>,</mo><mi mathvariant="normal">σ</mi><mn>2</mn><mo> </mo><msup><mi mathvariant="normal">s</mi><mn>2</mn></msup><mo>,</mo><msup><mi mathvariant="normal">σ</mi><mo>*</mo></msup><mn>2</mn><mo> </mo><msup><mi mathvariant="normal">s</mi><mn>2</mn></msup><mo>,</mo><mo> </mo><mi mathvariant="normal">σ</mi><mn>2</mn><msup><msub><mi mathvariant="normal">p</mi><mi mathvariant="normal">z</mi></msub><mn>2</mn></msup><mo>,</mo><mi mathvariant="normal">π</mi><mn>2</mn><msup><msub><mi mathvariant="normal">p</mi><mi mathvariant="normal">x</mi></msub><mn>2</mn></msup><mo>=</mo><mi mathvariant="normal">π</mi><mn>2</mn><msup><msub><mi mathvariant="normal">p</mi><mi mathvariant="normal">y</mi></msub><mn>2</mn></msup><mo>,</mo><msup><mi mathvariant="normal">π</mi><mo>*</mo></msup><mn>2</mn><msup><msub><mi mathvariant="normal">p</mi><mi mathvariant="normal">x</mi></msub><mn>1</mn></msup><mo>=</mo><msup><mi mathvariant="normal">π</mi><mo>*</mo></msup><mn>2</mn><msup><msub><mi mathvariant="normal">p</mi><mi mathvariant="normal">y</mi></msub><mn>1</mn></msup></math><br/>Removal of one electron from the <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub></math>, molecule gives <math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mi mathvariant="normal">O</mi><mn>2</mn><mo>+</mo></msubsup></math> in which the number of anti bonding electrons is one less and hence, <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>BO</mi></math> increases. Thus, removal of one electron from <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub></math> stabilises the molecule.</div>


title: which-of-the-following-does-not-contain-any-coordinate-bond
slug: which-of-the-following-does-not-contain-any-coordinate-bond-17882
question: <div class="question">Which of the following does not contain any coordinate bond?</div>
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2021']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{H}_{3} \mathrm{O}^{+}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{BF}_{4}{ }^{-}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{HF}_{2}{ }^{-}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{SO}_{2}{ }^{-}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{HF}_{2}{ }^{-}$</span> </div>

answer:
<div class="solution">$\mathrm{HF}_{2}$ is the only compound among the given options which does not contain any coordinate bond because it has hydrogen bonding.
<br/> <br/>$[\mathrm{H}-\mathrm{F} \bullet \bullet \bullet \mathrm{H}]^{-}$</div>


title: which-of-the-following-does-not-have-valence-electron-in-3-d-subshell
slug: which-of-the-following-does-not-have-valence-electron-in-3-d-subshell-16561
tags: ['Chemistry', 'Classification of Elements and Periodicity in Properties', 'BITSAT', 'BITSAT 2012']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following does not have valence electron in $3 d$ -subshell?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Fe(III)</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{Mn}(\mathrm{II})$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{Cr}(\mathrm{I})$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">$\mathrm{P}(0)$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{P}(0)$</span> </div>

answer:
<div class="solution">$\mathrm{P}$ (At no. 15 ) has electronic configuration $1 s^{2}, 2 s^{2} p^{6}, 3 s^{2} p^{3},$ hence no electron in $d$ -subshell.</div>


title: which-of-the-following-electromagnetic-radiations-has-the-smallest-wavelength
slug: which-of-the-following-electromagnetic-radiations-has-the-smallest-wavelength-25197
tags: ['Physics', 'Electromagnetic Waves', 'BITSAT', 'BITSAT 2013']
answer: <div class="solution">No Solution</div>
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following electromagnetic radiations has the smallest wavelength?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Ultraviolet rays</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">X-rays</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\gamma$ -rays</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Microwaves</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\gamma$ -rays</span> </div>


title: which-of-the-following-elements-does-not-belong-to-first-transition-series
slug: which-of-the-following-elements-does-not-belong-to-first-transition-series-55475
tags: ['Chemistry', 'd and f Block Elements', 'BITSAT', 'BITSAT 2009']
answer: <div class="solution">No Solution available</div>
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following elements does not belong to first transition series?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{Fe}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{V}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{Ag}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{Cu}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Ag}$</span> </div>


title: which-of-the-following-elements-mostly-form-covalent-compounds
slug: which-of-the-following-elements-mostly-form-covalent-compounds-87418
question: <div class="question">Which of the following elements mostly form covalent compounds?</div>
tags: ['Chemistry', 's Block Elements', 'BITSAT', 'BITSAT 2017']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Cs</mi></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Rb</mi></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">K</mi></math></span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Li</mi></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Li</mi></math></span> </div>

answer:
<div class="solution"><p>First member of <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>1</mn><mi>st</mi></math> group i.e. lithium, mostly form covalent compounds due to its small size and comparatively high <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">I</mi><mo>.</mo><mi mathvariant="normal">E</mi><mo>.</mo></math> (with respect to other members of its group). </p><p>Covalent character depends upon the atomic radii. Smaller the atomic radii, more the covalent character i.e. the covalent character is inversely proportional to atomic radii.</p></div>


title: which-of-the-following-esters-cannot-undergo-claisen-self-condensation
slug: which-of-the-following-esters-cannot-undergo-claisen-self-condensation-28009
question: <div class="question">Which of the following esters cannot undergo Claisen self condensation?</div>
tags: ['Chemistry', 'Aldehydes and Ketones', 'BITSAT', 'BITSAT 2011']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{COOC}_{2} \mathrm{H}_{5}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{COOC}_{2} \mathrm{H}_{5}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{C}_{6} \mathrm{H}_{11} \mathrm{CH}_{2} \mathrm{COOC}_{2} \mathrm{H}_{5}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{COOC}_{2} \mathrm{H}_{5}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{COOC}_{2} \mathrm{H}_{5}$</span> </div>

answer:
<div class="solution">Claisen condensation is given by esters having two $\alpha$ -hydrogen atoms.</div>


title: which-of-the-following-exhibit-only-3-oxidation-state
slug: which-of-the-following-exhibit-only-3-oxidation-state-50541
question: <div class="question">Which of the following exhibit only+ 3 oxidation state?</div>
tags: ['Chemistry', 'Structure of Atom', 'BITSAT', 'BITSAT 2011']
answer: <div class="solution">$\mathrm{Ac}(89)=[\mathrm{Rn}]\left[6 d^{1}\right]\left[7 s^{2}\right]$</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{U}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Th</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{Ac}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{Pa}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Ac}$</span> </div>


tags: ['Chemistry', 'Chemical Kinetics', 'BITSAT', 'BITSAT 2018']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-expression-is-correct-for-the-rate-of-reaction-given-below-5-br-aq-bro-3-aq-6-h-aq-3-br-2-aq-3-h-2-o-l

slug:
which-of-the-following-expression-is-correct-for-the-rate-of-reaction-given-below-5-br-aq-bro-3-aq-6-h-aq-3-br-2-aq-3-h-2-o-l-57456

question:
<div class="question"><p>Which of the following expression is correct for the rate of reaction given below ?</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>5</mn><msup><mi>Br</mi><mo>-</mo></msup><mfenced><mi>aq</mi></mfenced><mo>+</mo><msubsup><mi>BrO</mi><mn>3</mn><mo>-</mo></msubsup><mfenced><mi>aq</mi></mfenced><mo>+</mo><mn>6</mn><msup><mi mathvariant="normal">H</mi><mo>+</mo></msup><mfenced><mi>aq</mi></mfenced><mo>⟶</mo><mn>3</mn><msub><mi>Br</mi><mn>2</mn></msub><mfenced><mi>aq</mi></mfenced><mo>+</mo><mn>3</mn><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mfenced><mi mathvariant="normal">l</mi></mfenced></math></p></div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi>Br</mi><mo>-</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac><mo>=</mo><mfrac><mn>5</mn><mn>6</mn></mfrac><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi mathvariant="normal">H</mi><mo>+</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi>Br</mi><mo>-</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac><mo>=</mo><mfrac><mn>6</mn><mn>5</mn></mfrac><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi mathvariant="normal">H</mi><mo>+</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi>Br</mi><mo>-</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac><mo>=</mo><mfrac><mrow><mn>5</mn><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi mathvariant="normal">H</mi><mo>+</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac></math></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi>Br</mi><mo>-</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac><mo>=</mo><mfrac><mrow><mn>6</mn><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi mathvariant="normal">H</mi><mo>+</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi>Br</mi><mo>-</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac><mo>=</mo><mfrac><mn>5</mn><mn>6</mn></mfrac><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi mathvariant="normal">H</mi><mo>+</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac></math></span> </div>

answer:
<div class="solution"><p>The given chemical reaction is</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>5</mn><msup><mi>Br</mi><mo>-</mo></msup><mfenced><mi>aq</mi></mfenced><mo>+</mo><msubsup><mi>BrO</mi><mn>3</mn><mo>-</mo></msubsup><mfenced><mi>aq</mi></mfenced><mo>+</mo><mn>6</mn><msup><mi mathvariant="normal">H</mi><mo>+</mo></msup><mfenced><mi>aq</mi></mfenced><mo>⟶</mo><mn>3</mn><msub><mi>Br</mi><mn>2</mn></msub><mfenced><mi>aq</mi></mfenced><mo>+</mo><mn>3</mn><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mfenced><mi>l</mi></mfenced></math></p><p>Rate law expression for the given reaction can be written as</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>-</mo><mfrac><mn>1</mn><mn>5</mn></mfrac><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi>Br</mi><mo>-</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac><mo>=</mo><mo>-</mo><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msubsup><mi>BrO</mi><mn>3</mn><mo>-</mo></msubsup></mfenced></mrow><mi>Δt</mi></mfrac></math></p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>-</mo><mfrac><mn>1</mn><mn>6</mn></mfrac><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi mathvariant="normal">H</mi><mo>+</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac><mo>=</mo><mo>+</mo><mfrac><mn>1</mn><mn>3</mn></mfrac><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msub><mi>Br</mi><mn>2</mn></msub></mfenced></mrow><mi>Δt</mi></mfrac></math></p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>⇒</mo><mo>-</mo><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi>Br</mi><mo>-</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac><mo>=</mo><mo>-</mo><mfrac><mrow><mn>5</mn><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msubsup><mi>BrO</mi><mn>3</mn><mo>-</mo></msubsup></mfenced></mrow><mi>Δt</mi></mfrac><mo>=</mo><mo>-</mo><mfrac><mn>5</mn><mn>6</mn></mfrac><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi mathvariant="normal">H</mi><mo>+</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac></math></p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi>Br</mi><mo>-</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac><mo>=</mo><mfrac><mn>5</mn><mn>6</mn></mfrac><mfrac><mrow><mi mathvariant="normal">Δ</mi><mfenced close="]" open="["><msup><mi mathvariant="normal">H</mi><mo>+</mo></msup></mfenced></mrow><mi>Δt</mi></mfrac></math></p></div>


tags: ['Physics', 'Oscillations', 'BITSAT', 'BITSAT 2011']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">$-b x$</span> </div>
source_db: MarksBatch2_P4.db
title:
which-of-the-following-expressions-corresponds-to-simple-harmonic-motion-along-a-straight-line-where-x-is-the-displacement-and-a-b-c-are-positive-cons-1

slug:
which-of-the-following-expressions-corresponds-to-simple-harmonic-motion-along-a-straight-line-where-x-is-the-displacement-and-a-b-c-are-positive-cons-1-60363

question:
<div class="question">Which of the following expressions corresponds to simple harmonic motion along a straight line, where $x$ is the displacement and $a, b, c$ are positive constants?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$a+b x-c x^{2}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$b x^{2}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$a-b x+c x^{2}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">$-b x$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

answer:
<div class="solution">In linear S.H.M., the restoring force acting on particle should always be proportional to the displacement of the particle and directed towards the equilibrium position. i.e., $\mathrm{F} \propto \mathrm{x}$<br/>or $\mathrm{F}=-\mathrm{bx}$ where $\mathrm{b}$ is a positive constant.</div>


tags: ['Chemistry', 'General Organic Chemistry', 'BITSAT', 'BITSAT 2023 (Memory Based Paper 1)']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-factors-affect-the-basic-strength-of-amine-i-inductive-effect-ii-steric-hinderance-iii-solvation-effect-iv-solubility-in-organi

slug:
which-of-the-following-factors-affect-the-basic-strength-of-amine-i-inductive-effect-ii-steric-hinderance-iii-solvation-effect-iv-solubility-in-organi-64144

question:
<div class="question">Which of the following factors affect the basic strength of amine?<br/>(i) Inductive effect<br/>(ii) Steric hinderance<br/>(iii) Solvation effect<br/>(iv) Solubility in organic solvents.</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">(i) and (iv)</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">(i), (ii) and (iii)</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">(ii) and (iii)</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">(ii) and (iv)</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">(i), (ii) and (iii)</span> </div>

answer:
<div class="solution">Inductive effect, steric hinderance and solvation effect the basic strength of amines.</div>


title: which-of-the-following-fluorides-of-xenon-is-impossible
slug: which-of-the-following-fluorides-of-xenon-is-impossible-87009
question: <div class="question">Which of the following fluorides of xenon is impossible?</div>
tags: ['Chemistry', 'p Block Elements (Group 15, 16, 17 & 18)', 'BITSAT', 'BITSAT 2015']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{XeF}_{2}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{XeF}_{3}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{XeF}_{4}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{XeF}_{6}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{XeF}_{3}$</span> </div>

answer:
<div class="solution"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/bHzQu3nxlmZVDSX6S_WZrTAn59VY3q7yiRvQWUKDlqM.original.fullsize.png"/><br/> <br/> <br/>Xe $\mathrm{F}_{2}:$ Hybridization $\mathrm{sp}^{3} \mathrm{~d}$
<br/> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/Z7BI2elZRf_oQcKnvbzkQ8zVM2kZidvJgjVFi1kLM_w.original.fullsize.png"/><br/> <br/> <br/>Linear
<br/> <br/>Xe $\mathrm{F}_{4}:$ Hybridization $\mathrm{sp}^{3} \mathrm{~d}^{2}$
<br/> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/bKS_u9i2gYBdQfZ3lo7bPq737lj2oGsuI9ifcNOm150.original.fullsize.png"/><br/> <br/> <br/>Square planar
<br/> <br/>$\mathrm{XeF}_{6}:$ Hybribisation $\mathrm{sp}^{3} \mathrm{~d}^{3}$
<br/> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/E7dOOuxqFyYDIyl-Z2kK9ZP1ABUSvrl0OtaSpahtxrw.original.fullsize.png"/><br/> <br/> <br/>Pentagonal pyramidal or distorted octahedral</div>


title: which-of-the-following-functions-is-differentiable-at-x0
slug: which-of-the-following-functions-is-differentiable-at-x0-40999
question: <div class="question">Which of the following functions is differentiable at \(x=0\) ?</div>
tags: ['Mathematics', 'Quadratic Equation', 'BITSAT', 'BITSAT 2010']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">\(\cos (|x|)+|x|\)</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">\(\cos (|x|)-|x|\)</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">\(\sin (|x|)+|x|\)</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">\(\sin (|x|)-|x|\)</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">\(\sin (|x|)-|x|\)</span> </div>

answer:
<div class="solution">\(|x|\) is non-differentiable function at<br/>\(\begin{aligned}<br/>&amp; x=0 \text { as L.H.D }=-1 \text { and R.H. } \mathrm{D}=1 \\<br/>&amp; \because|x|=\left\{\begin{array}{cl}<br/>x, &amp; x \geq 0 \\<br/>-x, &amp; x  &lt; 0<br/>\end{array}\right.<br/>\end{aligned}\)<br/>But \(\cos |h|\) is differentiable<br/>\(\therefore\) Any combination of two such functions will be non-differentiable. Hence option (a) and (b) are ruled out.<br/>Now, consider \(\sin |x|+|x|\)<br/>\(\begin{aligned} &amp; L^{\prime}=\lim _{h \rightarrow 0} \frac{\sin |-h|+|-h|}{-h}=\lim _{h \rightarrow 0} \frac{\sin h}{-h}-1=-1-1 =-2 \\ &amp; R^{\prime}=\lim _{h \rightarrow 0} \frac{\sin |h|+|h|}{h}=\lim _{h \rightarrow 0} \frac{\sin h}{h}+1=1+1=2 \\ &amp; \text { Consider } \sin |x|-|x| \\ &amp; L^{\prime}=\lim _{h \rightarrow 0} \frac{\sin |-h|-|-h|}{-h}=\lim _{h \rightarrow 0} \frac{\sin h}{-h}+1=0 \\ &amp; \end{aligned}\)</div>


title: which-of-the-following-gas-molecules-have-maximum-value-of-enthalpy-of-physisorption
slug: which-of-the-following-gas-molecules-have-maximum-value-of-enthalpy-of-physisorption-61015
tags: ['Chemistry', 'Surface Chemistry', 'BITSAT', 'BITSAT 2012']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following gas molecules have maximum value of enthalpy of physisorption?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{C}_{2} \mathrm{H}_{6}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{Ne}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{H}_{2} \mathrm{O}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{H}_{2}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{H}_{2} \mathrm{O}$</span> </div>

answer:
<div class="solution">The more the liquifiable nature of a gas, the more is the enthalpy of adsorption. Water is more liquifiable.</div>


title: which-of-the-following-graph-is-correctly-represented-according-to-freundlich-isotherm
slug: which-of-the-following-graph-is-correctly-represented-according-to-freundlich-isotherm-66703
tags: ['Chemistry', 'Surface Chemistry', 'BITSAT', 'BITSAT 2018']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following graph is correctly represented according to Freundlich isotherm.</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data"><p><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/86555781-f85b-41b4-b7cf-e9a2fc740a1b-image.png" style="width: 168px; height: 170px;"/></p></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><p><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/0542279d-c55a-4bda-8c3f-a6014639f9ff-8bf60993-dff5-40ca-93b9-4eda26435630-image.png" style="width: 200px; height: 185px;"/></p></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><p><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/016ebcfc-f596-4750-880c-df5b60ec2790-image.png" style="width: 168px; height: 170px;"/></p></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><p><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/0251b59c-646c-4eb5-ac1d-5d232127fad1-image.png" style="width: 175px; height: 170px;"/></p></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><p><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/86555781-f85b-41b4-b7cf-e9a2fc740a1b-image.png" style="width: 168px; height: 170px;"/></p></span> </div>

answer:
<div class="solution"><p>According to Freundlich adsorption isotherm,<br/><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">x</mi><mo>/</mo><mi mathvariant="normal">m</mi><mo>=</mo><mi mathvariant="normal">k</mi><mo>×</mo><msup><mi mathvariant="normal">P</mi><mfrac><mn>1</mn><mi mathvariant="normal">n</mi></mfrac></msup></math><br/>where, <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">x</mi><mo>=</mo></math> mass of gas adsorbed on mass '<math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">m</mi></math>' of the absorbent at pressure <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">p</mi></math>.</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">k</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo></math> constants.</p><p>Taking logarithm on both sides, we get<br/><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>logx</mi><mo>/</mo><mi mathvariant="normal">m</mi><mo>=</mo><mi>logk</mi><mo>+</mo><mfrac><mn>1</mn><mi mathvariant="normal">n</mi></mfrac><mi>logp</mi></math></p><p>This is equation of a straight line with slope of <math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mn>1</mn><mi mathvariant="normal">n</mi></mfrac></math> and intercept of <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>logk</mi></math>.</p></div>


title: which-of-the-following-halides-is-not-oxidized-by-mno-2
slug: which-of-the-following-halides-is-not-oxidized-by-mno-2-19143
question: <div class="question">Which of the following halides is not oxidized by $\mathrm{MnO}_{2}$</div>
tags: ['Chemistry', 'p Block Elements (Group 15, 16, 17 & 18)', 'BITSAT', 'BITSAT 2011']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$\mathrm{F}^{-}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{Cl}^{-}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{Br}^{-}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\Gamma$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{F}^{-}$</span> </div>

answer:
<div class="solution">$\mathrm{F}_{2}$ is strongest oxidising agent. $\mathrm{F}^{-}$ is not oxidised by $\mathrm{MnO}_{2}$</div>


title: which-of-the-following-halogens-exhibit-only-one-oxidation-state-in-its-compounds
slug: which-of-the-following-halogens-exhibit-only-one-oxidation-state-in-its-compounds-54706
tags: ['Chemistry', 'p Block Elements (Group 15, 16, 17 & 18)', 'BITSAT', 'BITSAT 2014']
answer: <div class="solution">Fluorine, since it is the most electronegative element.</div>
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following halogens exhibit only one oxidation state in its compounds?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Bromine</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Chlorine</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Fluorine</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Iodine</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Fluorine</span> </div>


title: which-of-the-following-has-correct-increasing-basic-strength
slug: which-of-the-following-has-correct-increasing-basic-strength-89467
question: <div class="question">Which of the following has correct increasing basic strength?</div>
tags: ['Chemistry', 's Block Elements', 'BITSAT', 'BITSAT 2012']
answer: <div class="solution">The basic character of oxides increases down the group.</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{MgO}&lt;\mathrm{BeO}&lt;\mathrm{CaO}&lt;\mathrm{BaO}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{BeO}&lt;\mathrm{MgO}&lt;\mathrm{CaO}&lt;\mathrm{BaO}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{BaO}&lt;\mathrm{CaO}&lt;\mathrm{MgO}&lt;\mathrm{BeO}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{CaO}&lt;\mathrm{BaO}&lt;\mathrm{BeO}&lt;\mathrm{MgO}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{BeO}&lt;\mathrm{MgO}&lt;\mathrm{CaO}&lt;\mathrm{BaO}$</span> </div>


title: which-of-the-following-has-minimum-melting-point
slug: which-of-the-following-has-minimum-melting-point-28541
question: <div class="question">Which of the following has minimum melting point?</div>
tags: ['Chemistry', 's Block Elements', 'BITSAT', 'BITSAT 2021']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{CsF}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{HCl}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{HF}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{LiF}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{HCl}$</span> </div>

answer:
<div class="solution">Ionic compounds have high melting point. Greater the ionic character, more is melting point. $\mathrm{HCl}$ has least ionic character because of maximum electronegativity difference between the two constituent elements, ( $\mathrm{H}$ and $\mathrm{Cl}$ ) among $\mathrm{CsF}, \mathrm{HCl}, \mathrm{HF}$ and $\mathrm{LiF}$
<br/> <br/>$\therefore \mathrm{HCl}$ has minimum melting point.</div>


title: which-of-the-following-has-square-planar-geometry-1
slug: which-of-the-following-has-square-planar-geometry-1-50644
question: <div class="question">Which of the following has square planar geometry?</div>
tags: ['Chemistry', 'Coordination Compounds', 'JEE Main']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$\left[\mathrm{PtCl}_{4}\right]^{2-}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\left[\mathrm{NiCl}_{4}\right]^{2-}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\left[\mathrm{ZnCl}_{4}\right]^{2-}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\left[\mathrm{CoCl}_{4}\right]^{2-}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\left[\mathrm{PtCl}_{4}\right]^{2-}$</span> </div>

answer:
<div class="solution">$\left[\mathrm{PtCl}_{4}\right]^{2-}$ has square planar geometry. $\mathrm{Pt}: 5 d^{9} 6 s^{1}$<br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/-gdRq6NOhCl92znyLCzO5N9qVC0JmexUVrElhAzON38.original.fullsize.png"/><br/><br/>Two electrons are removed from $5 d$ shell and $6 s$ shell. So, hybridisation takes place is $d s p^{2}$ i.e. square planar geometry.</div>


title: which-of-the-following-has-the-highest-p-p-bonding-tendency
slug: which-of-the-following-has-the-highest-p-p-bonding-tendency-89348
question: <div class="question">Which of the following has the highest $p \pi-p \pi$ bonding tendency?</div>
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2021']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">$N$</span> </div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$N$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$P$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$As$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$Sb$</span> </li> </ul>

answer:
<div class="solution">Nitrogen due to small size is able to show $p \pi-p \pi$ lateral overlap forming $\mathrm{N} \equiv \mathrm{N}$, rest elements due to bigger size are not able to show $p \pi-p \pi$ lateral overlap.</div>


title: which-of-the-following-has-the-largest-number-of-moles
slug: which-of-the-following-has-the-largest-number-of-moles-21858
question: <div class="question">Which of the following has the largest number of moles?</div>
tags: ['Chemistry', 'Some Basic Concepts of Chemistry', 'BITSAT', 'BITSAT 2017']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>8</mn><mo> </mo><mi mathvariant="normal">g</mi></math> of oxygen atoms</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>16</mn><mo> </mo><mi mathvariant="normal">g</mi></math> of oxygen gas</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>14</mn><mo> </mo><mi mathvariant="normal">g</mi></math> of nitrogen gas <math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><msub><mi mathvariant="normal">N</mi><mn>2</mn></msub></mfenced></math></span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">All have the same number of moles</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">All have the same number of moles</span> </div>

answer:
<div class="solution"><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∵</mo><mo> </mo><mi mathvariant="normal">n</mi><mo>=</mo><mfrac><mrow><mo>(</mo><mi>actual</mi><mo> </mo><mi>mass</mi><mo>)</mo><mo> </mo></mrow><mrow><mo>(</mo><mi>molar</mi><mo> </mo><mi>mass</mi><mo>)</mo></mrow></mfrac></math></p><p>(a) <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mfrac><mi mathvariant="normal">w</mi><mi mathvariant="normal">m</mi></mfrac><mo>=</mo><mfrac><mn>8</mn><mn>16</mn></mfrac><mo>=</mo><mfrac><mn>1</mn><mn>2</mn></mfrac><mo> </mo><mi>mole</mi></math> </p><p>(b) <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mfrac><mn>16</mn><mn>32</mn></mfrac><mo>=</mo><mfrac><mn>1</mn><mn>2</mn></mfrac><mo> </mo><mi>mole</mi></math> </p><p>(c) <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mfrac><mn>14</mn><mn>28</mn></mfrac><mo>=</mo><mfrac><mn>1</mn><mn>2</mn></mfrac><mo> </mo><mi>mole</mi></math></p><p>(d) Thus, all have the same number of moles.</p></div>


title: which-of-the-following-has-two-stereoisomers
slug: which-of-the-following-has-two-stereoisomers-91990
tags: ['Chemistry', 'General Organic Chemistry', 'BITSAT', 'BITSAT 2016']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">Only I</span> </div>
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following has two stereoisomers?
<br/> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/NHlci56U-Z-BDlSTU3UIg8JOcbbpKL1V5o2Su8rlYfQ.original.fullsize.png"/></div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">None of these</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Only I</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Only III</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{I}$ and III</span> </li> </ul>

answer:
<div class="solution">A rapid umbrella type inversion rapidly converts the structure III to its enantiomer; hence the two enantiomers are not separable.</div>


title: which-of-the-following-has-zero-dipole-moment
slug: which-of-the-following-has-zero-dipole-moment-50233
question: <div class="question">Which of the following has zero dipole moment?</div>
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2009']
answer: <div class="solution">No Solution available</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">1,1 -dichloromethane</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">cis -1,2 -dichloroethene</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">trans -1,2 -dichloroethene</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">1 -chloroethane</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">trans -1,2 -dichloroethene</span> </div>


title: which-of-the-following-ionic-substances-will-be-most-effective-in-precipitating-the-sulphur-sol
tags: ['Chemistry', 'Surface Chemistry', 'BITSAT', 'BITSAT 2015']
answer: <div class="solution">No Solution</div>
source_db: MarksBatch2_P4.db
slug:
which-of-the-following-ionic-substances-will-be-most-effective-in-precipitating-the-sulphur-sol-84680

question:
<div class="question">Which of the following ionic substances will be most effective in precipitating the sulphur sol?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{KCl}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{BaCl}_{2}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{Fe}_{2}\left(\mathrm{SO}_{4}\right)_{3}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{Na}_{3} \mathrm{PO}_{4}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Fe}_{2}\left(\mathrm{SO}_{4}\right)_{3}$</span> </div>


title: which-of-the-following-ions-can-be-separated-by-aq-nh-4-oh-in-presence-of-nh-4-cl
slug: which-of-the-following-ions-can-be-separated-by-aq-nh-4-oh-in-presence-of-nh-4-cl-38631
tags: ['Chemistry', 'Practical Chemistry', 'BITSAT', 'BITSAT 2014']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following ions can be separated by aq. $\mathrm{NH}_{4} \mathrm{OH}$ in presence of $\mathrm{NH}_{4} \mathrm{Cl}$</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{Al}^{3+}$ and $\mathrm{Fe}^{3+}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{Cr}^{3+}$ and $\mathrm{Al}^{3+}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{Cu}^{2+}$ and $\mathrm{Al}^{3+}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">None of these</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Cu}^{2+}$ and $\mathrm{Al}^{3+}$</span> </div>

answer:
<div class="solution">$\mathrm{Cu}^{2+}$ is of group II and $\mathrm{Al}^{3+}$ is of group III of cation analysis.</div>


title: which-of-the-following-is-a-diamagnetic-complex
slug: which-of-the-following-is-a-diamagnetic-complex-78578
question: <div class="question">Which of the following is a diamagnetic complex</div>
tags: ['Chemistry', 'Coordination Compounds', 'BITSAT', 'BITSAT 2017']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Co</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><msub><mi>NiCl</mi><mn>4</mn></msub></mfenced><mrow><mn>2</mn><mo>-</mo></mrow></msup></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><msub><mi>CuCl</mi><mn>4</mn></msub></mfenced><mrow><mn>2</mn><mo>-</mo></mrow></msup></math></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Fe</mi><msub><mfenced><mrow><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></mrow></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Co</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> </div>

answer:
<div class="solution"><p>Among the given option (a) is a diamagnetic complex.</p><p>(a) <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Co</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>3</mn><mo>+</mo></mrow></msup><mo>⇒</mo><mi>Co</mi><mfenced><mn>27</mn></mfenced><mo>⇒</mo><msup><mi>Co</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup><mo>=</mo><mn>3</mn><msup><mi mathvariant="normal">d</mi><mn>6</mn></msup><mn>4</mn><msup><mi mathvariant="normal">s</mi><mn>0</mn></msup></math>.</p><p>Thus, has no unpaired electrons and is a diamagnetic complex.</p><p>(b) <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><msub><mi>NiCl</mi><mn>4</mn></msub></mfenced><mrow><mn>2</mn><mo>-</mo></mrow></msup><mo>⇒</mo><mi>Ni</mi><mfenced><mn>28</mn></mfenced><mo>⇒</mo><msup><mi>Ni</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>=</mo><mn>3</mn><msup><mi mathvariant="normal">d</mi><mn>8</mn></msup><mn>4</mn><msup><mi mathvariant="normal">s</mi><mn>0</mn></msup></math> </p><p>Thus, has two unpaired electrons is paramagnetic.</p><p>(c) <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><msub><mi>CuCl</mi><mn>4</mn></msub></mfenced><mrow><mn>2</mn><mo>-</mo></mrow></msup><mo>⇒</mo><mi>Cu</mi><mfenced><mn>29</mn></mfenced><mo>⇒</mo><msup><mi>Cu</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>=</mo><mn>3</mn><msup><mi mathvariant="normal">d</mi><mn>9</mn></msup><mn>4</mn><msup><mi mathvariant="normal">s</mi><mn>0</mn></msup></math></p><p>Thus, has one unpaired electrons and is paramagnetic.</p><p>(d) <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Fe</mi><msub><mfenced><mrow><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></mrow></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>3</mn><mo>+</mo></mrow></msup><mo>⇒</mo><mi>Fe</mi><mfenced><mn>26</mn></mfenced><mo>⇒</mo><msup><mi>Fe</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup><mo>=</mo><mn>3</mn><msup><mi mathvariant="normal">d</mi><mn>5</mn></msup><mn>4</mn><msup><mi mathvariant="normal">s</mi><mn>0</mn></msup></math></p><p>Thus, has five unpaired electrons and is paramagnetic.</p></div>


title: which-of-the-following-is-a-hypnotic-drug-2
slug: which-of-the-following-is-a-hypnotic-drug-2-27620
question: <div class="question">Which of the following is a hypnotic drug?</div>
tags: ['Chemistry', 'Chemistry in Everyday Life', 'BITSAT', 'BITSAT 2023 (Memory Based Paper 2)']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data"><br/>luminal</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><br/>salol</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><br/>catechol</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><br/>chemisol</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><br/>luminal</span> </div>

answer:
<div class="solution">These drugs induce sleep and are habit forming common example of hypnotic drugs are luminal and saconal.</div>


title: which-of-the-following-is-a-strong-base
slug: which-of-the-following-is-a-strong-base-91590
question: <div class="question">Which of the following is a strong base?</div>
tags: ['Chemistry', 'Classification of Elements and Periodicity in Properties', 'BITSAT', 'BITSAT 2015']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{PH}_{3}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{AsH}_{3}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{NH}_{3}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{SbH}_{3}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{NH}_{3}$</span> </div>

answer:
<div class="solution">Order of basic character is $\mathrm{NH}_{3}&gt;\mathrm{PH}_{3}&gt;$ $\mathrm{AsH}_{3}&gt;\mathrm{SbH}_{3} .$ Basic-character decreases down the group from $\mathrm{N}$ to Bi due to increase in atomic size.</div>


title: which-of-the-following-is-an-incorrect-set-of-quantum-members
slug: which-of-the-following-is-an-incorrect-set-of-quantum-members-45043
question: <div class="question">Which of the following is an incorrect set of quantum members?</div>
tags: ['Chemistry', 'Structure of Atom', 'BITSAT', 'BITSAT 2017']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mn>2</mn><mo>,</mo><mo> </mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>0</mn><mo>,</mo><mo> </mo><mi mathvariant="normal">m</mi><mo>=</mo><mn>0</mn></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mn>1</mn><mo>,</mo><mo> </mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>0</mn><mo>,</mo><mo> </mo><mi mathvariant="normal">m</mi><mo>=</mo><mn>0</mn></math></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mn>3</mn><mo>,</mo><mo> </mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>3</mn><mo>,</mo><mo> </mo><mi mathvariant="normal">m</mi><mo>=</mo><mn>0</mn></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mn>2</mn><mo>,</mo><mo> </mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>1</mn><mo>,</mo><mo> </mo><mi mathvariant="normal">m</mi><mo>=</mo><mn>1</mn></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mn>3</mn><mo>,</mo><mo> </mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>3</mn><mo>,</mo><mo> </mo><mi mathvariant="normal">m</mi><mo>=</mo><mn>0</mn></math></span> </div>

answer:
<div class="solution"><p>Maximum l value should be equal to n−1 and it cannot be equal to n.</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∵</mo></math> for <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi mathvariant="normal">l</mi><mo>)</mo></math> It can be upto <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi mathvariant="normal">n</mi><mo>-</mo><mn>1</mn><mo>)</mo></math> and </p><p>Thus, <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">m</mi><mo>=</mo><mo>±</mo><mi mathvariant="normal">l</mi></math> i.e. <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>+</mo><mi mathvariant="normal">l</mi><mo>,</mo><mn>0</mn><mo>,</mo><mo>-</mo><mi mathvariant="normal">l</mi></math></p><p>for (a) <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mn>2</mn><mo>,</mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>0</mn><mo>,</mo><mi mathvariant="normal">m</mi><mo>=</mo><mn>0</mn></math> (correct),</p><p>for (b) <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mn>1</mn><mo>,</mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>0</mn><mo>,</mo><mi mathvariant="normal">m</mi><mo>=</mo><mn>0</mn></math> (correct),</p><p>(c) <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mn>3</mn><mo>,</mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>3</mn></math> (not correct),</p><p>(d) <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo><mn>2</mn><mo>,</mo><mi mathvariant="normal">l</mi><mo>=</mo><mn>1</mn><mo>,</mo><mi mathvariant="normal">m</mi><mo>=</mo><mn>1</mn></math> (correct),</p></div>


title: which-of-the-following-is-best-nuclear-fuel
slug: which-of-the-following-is-best-nuclear-fuel-76041
question: <div class="question">Which of the following is best nuclear fuel</div>
tags: ['Physics', 'Nuclear Physics', 'BITSAT', 'BITSAT 2010']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">thorium 236</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">plutonium 239</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\quad$ uranium 236</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">neptunium 239</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">plutonium 239</span> </div>

answer:
<div class="solution">Plutonium 239 is processed by breeder mechanism to be used as nuclear feul.</div>


title: which-of-the-following-is-incorrect-with-respect-to-property-indicated
slug: which-of-the-following-is-incorrect-with-respect-to-property-indicated-16989
question: <div class="question">Which of the following is incorrect with respect to property indicated?</div>
tags: ['Chemistry', 'p Block Elements (Group 15, 16, 17 & 18)', 'BITSAT', 'BITSAT 2013']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{E} \cdot \mathrm{N}: \mathrm{F}&gt;\mathrm{Cl}&gt;\mathrm{Br}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\quad$ E.A: $\mathrm{Cl}&gt;\mathrm{F}&gt;\mathrm{Br}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Oxidising power : $\mathrm{F}_{2}&gt;\mathrm{Cl}_{2}&gt;\mathrm{Br}_{2}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">Bond energy : $\mathrm{F}_{2}&gt;\mathrm{Cl}_{2}&gt;\mathrm{Br}_{2}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Bond energy : $\mathrm{F}_{2}&gt;\mathrm{Cl}_{2}&gt;\mathrm{Br}_{2}$</span> </div>

answer:
<div class="solution">$\mathrm{F}_{2}$ is expected to have highest bond energy but the correct decreasing order is $\mathrm{Cl}_{2}&gt;\mathrm{Br}_{2}&gt;\mathrm{F}_{2}$ because of fluorine atom has very small size due to which there is a high inter electronic repulsion between two fluorine atoms so the bond between two fluorine gets weaker and need less energy.</div>


title: which-of-the-following-is-less-acidic-among-the-given-halogen-compounds
slug: which-of-the-following-is-less-acidic-among-the-given-halogen-compounds-79461
tags: ['Chemistry', 'p Block Elements (Group 15, 16, 17 & 18)', 'BITSAT', 'BITSAT 2013']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following is less acidic among the given halogen compounds?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$\mathrm{CHF}_{3}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{CH}_{3}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{CHCl}_{3}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{CHBr}_{3}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{CHF}_{3}$</span> </div>

answer:
<div class="solution">Due to stronger-I-effect of $\mathrm{F}$ than that of Cl, $\mathrm{CHF}_{3}$ should be more acidic than $\mathrm{CHCl}_{3} .$ But actually reverse is true.
<br/> <br/>This is due to : $\mathrm{CCl}_{3}^{-}$ left after the removal of a proton from $\mathrm{CHCl}_{3}$ is stabilised due to presence of $d$ -orbitals in
<br/> <br/>Cl than: $\mathrm{CF}_{3}^{-}$ left after the removal of a
<br/> <br/>proton from $\mathrm{CHF}_{3}$ which is not stabilised due to the absence of $d$ -orbitals on $\mathrm{F}$.</div>


title: which-of-the-following-is-most-accurate
slug: which-of-the-following-is-most-accurate-93281
question: <div class="question">Which of the following is most accurate?</div>
tags: ['Physics', 'Experimental Physics', 'BITSAT', 'BITSAT 2009']
answer: <div class="solution">No Solution available</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">A screw gauge of least count $0.001 \mathrm{~mm}$.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">A screw gauge having pitch $1 \mathrm{~mm}$ and 50 divisions on circular scale.</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">A vernier callipers of least count $0.01 \mathrm{~mm}$.</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Vernier callipers having 20 divisions on the sliding scale (vernier scale) coinciding 19 divisions on the main millimetre scale.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">A screw gauge of least count $0.001 \mathrm{~mm}$.</span> </div>


title: which-of-the-following-is-not-a-disproportionation-reaction
slug: which-of-the-following-is-not-a-disproportionation-reaction-22115
question: <div class="question">Which of the following is not a disproportionation reaction?</div>
tags: ['Chemistry', 'Redox Reactions', 'BITSAT', 'BITSAT 2020']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{P}_{4}+5 \mathrm{OH}^{-} \longrightarrow \mathrm{H}_{2} \mathrm{PO}_{2}^{-}+\mathrm{PH}_{3}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{Cl}_{2}+\mathrm{OH}^{-} \longrightarrow \mathrm{Cl}^{-}+\mathrm{ClO}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$2 \mathrm{H}_{2} \mathrm{O}_{2} \longrightarrow 2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">$\mathrm{PbO}_{2}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{PbO}+\mathrm{H}_{2} \mathrm{O}_{2}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{PbO}_{2}+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{PbO}+\mathrm{H}_{2} \mathrm{O}_{2}$</span> </div>

answer:
<div class="solution">Disproportionation involves simultaneous oxidation and reduction of the same atom in a molecule.</div>


tags: ['Mathematics', 'Linear Programming', 'BITSAT', 'BITSAT 2011']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-is-not-a-vertex-of-the-positive-region-bounded-by-the-inqualities-2-x3-y-leq-65-x3-y-leq-15-and-x-y-geq-0

slug:
which-of-the-following-is-not-a-vertex-of-the-positive-region-bounded-by-the-inqualities-2-x3-y-leq-65-x3-y-leq-15-and-x-y-geq-0-45725

question:
<div class="question">Which of the following is not a vertex of the positive region bounded by the inqualities \(2 x+3 y \leq 6,5 x+3 y \leq 15\) and \(x, y \geq 0\)</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">\((0,2)\)</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">\((0,0)\)</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">\((3,0)\)</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">None of these</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

answer:
<div class="solution">Here \((0,2),(0,0)\) and \((3,0)\) all are vertices of feasible region.<br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/f16yshOH3fXpGz3hrQSgkl90s_Dw29-XOpCrtsfBmAI.original.fullsize.png"/><br/></div>


title: which-of-the-following-is-not-considered-as-an-organometallic-compound
slug: which-of-the-following-is-not-considered-as-an-organometallic-compound-22559
question: <div class="question">Which of the following is not considered as an organometallic compound?</div>
tags: ['Chemistry', 'Haloalkanes and Haloarenes', 'BITSAT', 'BITSAT 2011']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">cis-platin</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Ferrocene</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Zeise's salt</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Grignard reagent</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">cis-platin</span> </div>

answer:
<div class="solution">The structural formula of cis-platin is<br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/2HhDl9zEykihnvpLm1nM8qK_H2YN2VpKmNjtcXeUCP0.original.fullsize.png"/><br/><br/>Since no carbon is involved it is not a<br/>organometallic compound.</div>


title: which-of-the-following-is-not-the-product-of-dehydration-of-2
slug: which-of-the-following-is-not-the-product-of-dehydration-of-2-78759
tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'JEE Main']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following is not the product of dehydration of<br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/SD-qbM1K1Tqf4rHbiIdluW64lEMfvljJPqEfHdgu8yQ.original.fullsize.png"/>?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/FAciKyxNfvwdCzdj1EO4fPlAw9qdUdpfQs4BmZt0MSc.original.fullsize.png"/></span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/oBKS6s11ELuulQW5RN6dGjw_6llShH2HbbVkAn0tGdI.original.fullsize.png"/></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/J0cgFDgGNp4AvDDM-QBm20t-3hLfZ5Gv5qey-cDMCl0.original.fullsize.png"/></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/I4RK9qhnUJrHJ48ZymLr78Suz1pdOhZSnyITSK8okoY.original.fullsize.png"/></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/oBKS6s11ELuulQW5RN6dGjw_6llShH2HbbVkAn0tGdI.original.fullsize.png"/></span> </div>

answer:
<div class="solution"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/zQRh1_bDqQZgU0R08mAW2eFE_TMxx60J_2pO4hurlwg.original.fullsize.png"/></div>


title: which-of-the-following-is-paramagnetic-2
slug: which-of-the-following-is-paramagnetic-2-78008
question: <div class="question">Which of the following is paramagnetic?</div>
tags: ['Chemistry', 'Coordination Compounds', 'BITSAT', 'BITSAT 2016']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\left[\mathrm{Ni}(\mathrm{CO})_{4}\right]$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]^{2-}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">$\left[\mathrm{CoF}_{6}\right]^{3-}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\left[\mathrm{CoF}_{6}\right]^{3-}$</span> </div>

answer:
<div class="solution">$\mathrm{Fe}^{2+}$ electronic configuration is $[\mathrm{Ar}] 3 \mathrm{~d}^{6}$. Since CN is strong field ligand d electrons are paired . In $\mathrm{Ni}(\mathrm{CO})_{4} \mathrm{O} . \mathrm{S}$. of $\mathrm{Ni}$ is zero electronic configuration is $[\mathrm{Ar}\} 3 \mathrm{~d}^{8} 4 \mathrm{~s}^{2} . \mathrm{In}$
<br/> <br/>presence of $\mathrm{CO}$ it is $[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^{0},$ electrons are paired. Electronic configuration of $\mathrm{Ni}^{2+}$ $[\mathrm{Ar}] 3 \mathrm{~d}^{8} 4 \mathrm{~s}^{0},$ due to $\mathrm{CN}^{-}$ ligand all electrons
<br/> <br/>are paired. $\mathrm{Co}^{3+}$ is $[\mathrm{Ar}] 3 \mathrm{~d}^{6}$ since $\mathrm{F}$ is weak ligand hence paramagnetic.</div>


title: which-of-the-following-is-process-used-for-the-preparation-of-acetone
slug: which-of-the-following-is-process-used-for-the-preparation-of-acetone-23162
question: <div class="question">Which of the following is process used for the preparation of acetone?</div>
tags: ['Chemistry', 'Aldehydes and Ketones', 'BITSAT', 'BITSAT 2012']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Haber process</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Wacker process</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Wolff-Kishner reduction</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Gattermann-Koch synthesis</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Wacker process</span> </div>

answer:
<div class="solution">In Wacker process, when mixture of propene and air is passed through mixture of $\mathrm{Pd}$ and $\mathrm{CuCl}_{2}$ at high pressure acetone is formed.
<br/>$\mathrm{Pd}+\mathrm{CuCl}_{2} \longrightarrow \mathrm{PdCl}_{2}+2 \mathrm{CuCl}$
<br/>$4 \mathrm{CuCl}+\mathrm{HCl}+\mathrm{O}_{2} \longrightarrow 4 \mathrm{CuCl}_{2}+2 \mathrm{H}_{2} \mathrm{O}$
<br/>$\mathrm{CH}_{3} \mathrm{CH}=\mathrm{CH}_{2}+\mathrm{PdCl}_{2}+\mathrm{H}_{2} \mathrm{O} \longrightarrow$
<br/>Propane
<br/>$\mathrm{CH}_{3} \mathrm{COCH}_{3}+\mathrm{Pd}+2 \mathrm{HCl}$</div>


title: which-of-the-following-is-similar-to-graphite
slug: which-of-the-following-is-similar-to-graphite-55882
question: <div class="question">Which of the following is similar to graphite</div>
tags: ['Chemistry', 'p Block Elements (Group 13 & 14)', 'BITSAT', 'BITSAT 2010']
answer: <div class="solution">Graphite and boron nitride have similar structure.</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\underline{B}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{BN}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{B}_{2} \mathrm{H}_{6}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{B}_{4} \mathrm{C}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{BN}$</span> </div>


title: which-of-the-following-is-soluble-in-yellow-ammonium-sulphide
slug: which-of-the-following-is-soluble-in-yellow-ammonium-sulphide-43090
question: <div class="question">Which of the following is soluble in yellow ammonium sulphide?</div>
tags: ['Chemistry', 'Practical Chemistry', 'BITSAT', 'BITSAT 2012']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{CuS}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{CdS}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{SnS}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{PbS}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{SnS}$</span> </div>

answer:
<div class="solution">$\mathrm{SnS}+\left(\mathrm{NH}_{4}\right)_{2} \mathrm{~S}_{2} \rightarrow\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SnS}_{3}$ soluble</div>


title: which-of-the-following-is-the-correct-order-for-the-wavelength-if-absorption-in-the-visible-region
tags: ['Chemistry', 'Coordination Compounds', 'BITSAT', 'BITSAT 2018']
source_db: MarksBatch2_P4.db
slug:
which-of-the-following-is-the-correct-order-for-the-wavelength-if-absorption-in-the-visible-region-60642

question:
<div class="question">Which of the following is the correct order for the wavelength if absorption in the visible region.</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NO</mi><mn>2</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>4</mn><mo>-</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><mrow><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></mrow></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NO</mi><mn>2</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>4</mn><mo>-</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><mrow><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></mrow></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><mrow><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></mrow></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NO</mi><mn>2</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>4</mn><mo>-</mo></mrow></msup></math></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><mrow><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></mrow></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NO</mi><mn>2</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>4</mn><mo>-</mo></mrow></msup></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NO</mi><mn>2</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>4</mn><mo>-</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><mrow><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></mrow></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> </div>

answer:
<div class="solution"><p>When central metal ion is same (here <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Ni</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math> ), the absorption of colour depends on the ligand.</p><p>According to spectrochemical series, various ligands are as follows</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">I</mi><mo>&lt;</mo><msup><mi>Br</mi><mo>-</mo></msup><mo>&lt;</mo><msup><mi>Cl</mi><mo>-</mo></msup><mo>&lt;</mo><msubsup><mi>NO</mi><mn>3</mn><mo>-</mo></msubsup><mo>&lt;</mo><msup><mi mathvariant="normal">F</mi><mo>-</mo></msup><mo>&lt;</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></math></p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&lt;</mo><msub><mi>NH</mi><mn>3</mn></msub><mo>&lt;</mo><msubsup><mi>NO</mi><mn>2</mn><mo>-</mo></msubsup><mo>&lt;</mo><msup><mi>CN</mi><mo>-</mo></msup><mo>&lt;</mo><mi>CO</mi></math></p><p>Thus, <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></math> is the weakest ligand among these, therefore the absorbed energy will be lowest in<br/><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><mrow><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></mrow></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>,</mo></math> so it will absorb highest wavelength (red light).</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">E</mi><mo>∝</mo><mfrac><mn>1</mn><mi mathvariant="normal">λ</mi></mfrac></math></p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∴</mo></math> The order of increasing wavelength is</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NO</mi><mn>2</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>4</mn><mo>-</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>&lt;</mo><msup><mfenced close="]" open="["><mrow><mi>Ni</mi><msub><mfenced><mrow><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></mrow></mfenced><mn>6</mn></msub></mrow></mfenced><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></p></div>


title: which-of-the-following-is-the-correct-order-of-stability-of-conformations-for-nh-2-ch-2-ch-2-oh
tags: ['Chemistry', 'General Organic Chemistry', 'BITSAT', 'BITSAT 2018']
source_db: MarksBatch2_P4.db
slug:
which-of-the-following-is-the-correct-order-of-stability-of-conformations-for-nh-2-ch-2-ch-2-oh-47698

question:
<div class="question"><div>Which of the following is the correct order of stability of conformations for <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>NH</mi><mn>2</mn></msub><mo>-</mo><msub><mi>CH</mi><mn>2</mn></msub><mo>-</mo><msub><mi>CH</mi><mn>2</mn></msub><mo>-</mo><mi>OH</mi></math>.</div></div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><div>gauche <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&gt;</mo></math> eclipsed <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&gt;</mo></math> anti</div></span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">gauche <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&gt;</mo></math> anti <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&gt;</mo></math> eclipsed</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">eclipsed <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&gt;</mo></math> gauche <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&gt;</mo></math> anti</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">anti <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&gt;</mo></math> eclipsed <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&gt;</mo></math> gauche</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">gauche <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&gt;</mo></math> anti <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>&gt;</mo></math> eclipsed</span> </div>

answer:
<div class="solution"><p>The anti conformation is most stable in which <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>NH</mi><mn>2</mn></msub></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>OH</mi></math> groups are far apart as possible and minimum repulsion between two groups occurs.</p><p>In fully eclipsed conformation <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>NH</mi><mn>2</mn></msub></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>OH</mi></math> groups are so close that the steric strain is maximum.</p><p><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/4ef874f7-b82c-45e9-b3d6-c5d2670bf826-d2b47552-9c8d-4ca1-9836-ff525f6ae662-QWW.png" style="width: 513px; height: 219px;"/></p><p>Since, gauche form is stabilised by intermolecular hydrogen bonding, hence it is more stable than anti.</p></div>


title: which-of-the-following-is-the-most-basic-oxide-2
slug: which-of-the-following-is-the-most-basic-oxide-2-27784
question: <div class="question">Which of the following is the most basic oxide?</div>
tags: ['Chemistry', 'p Block Elements (Group 13 & 14)', 'BITSAT', 'BITSAT 2015']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{Sb}_{2} \mathrm{O}_{3}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{Bi}_{2} \mathrm{O}_{3}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{SeO}_{2}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{Al}_{2} \mathrm{O}_{3}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Bi}_{2} \mathrm{O}_{3}$</span> </div>

answer:
<div class="solution">More the oxidation state of the central atom (metal) more is its acidity. Hence $\mathrm{SeO}_{2}(\mathrm{O} . \mathrm{S} .$ of $\mathrm{Se}=+4)$ is acidic. Further for a given O.S., the basic character of the oxides increases with the increasing size of the central atom. Thus $\mathrm{Al}_{2} \mathrm{O}_{3}$ and $\mathrm{Sb}_{2} \mathrm{O}_{3}$ are amphoteric and $\mathrm{Bi}_{2} \mathrm{O}_{3}$ is basic.</div>


title: which-of-the-following-is-used-in-the-preparation-of-chlorine
slug: which-of-the-following-is-used-in-the-preparation-of-chlorine-46222
question: <div class="question">Which of the following is used in the preparation of chlorine?</div>
tags: ['Chemistry', 'p Block Elements (Group 15, 16, 17 & 18)', 'BITSAT', 'BITSAT 2009']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Only $\mathrm{MnO}_{2}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\quad$ Only $\mathrm{KMnO}_{4}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Both $\mathrm{MnO}_{2}$ and $\mathrm{KMnO}_{4}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Either $\mathrm{MnO}_{2}$, or $\mathrm{KMnO}_{4}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Both $\mathrm{MnO}_{2}$ and $\mathrm{KMnO}_{4}$</span> </div>

answer:
<div class="solution">Both $\mathrm{MnO}_{2}$ and $\mathrm{KMnO}_{4}$ used for the preparation of chlorine by the action of conc. $\mathrm{HCl}$<br/>$$<br/>\begin{array}{l}<br/>\mathrm{MnO}_{2}+4 \mathrm{HCl} \rightarrow \mathrm{MnCl}_{2}+2 \mathrm{H}_{2} \mathrm{O}+\mathrm{Cl}_{2} \\<br/>2 \mathrm{KMnO}_{4}+16 \mathrm{HCl} \rightarrow 2 \mathrm{KCl}+2 \mathrm{MnCl}_{2} \\<br/>+8 \mathrm{H}_{2} \mathrm{O}+5 \mathrm{Cl}_{2}<br/>\end{array}<br/>$$<br/>Chlorine is not obtained by dil. $\mathrm{HCl}$<br/>$$<br/>\mathrm{Ag}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{Ag}_{2} \mathrm{~S}+\mathrm{H}_{2} \mathrm{SO}_{4}<br/>$$</div>


title: which-of-the-following-isare-aromatic-alcohol
slug: which-of-the-following-isare-aromatic-alcohol-28255
tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'BITSAT', 'BITSAT 2019']
source_db: MarksBatch2_P4.db
question:
<div class="question"><p>Which of the following is/are aromatic alcohol?</p><p><img height="135" src="https://cdn-question-pool.getmarks.app/pyq/bitsat/591a1fbb-2da1-4cab-ac36-9f85554972c2-image.png" width="455"/></p></div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">I</mi><mo>,</mo><mo> </mo><mi>II</mi><mo>,</mo><mo> </mo><mi>III</mi><mo>,</mo><mo> </mo><mi>IV</mi></math></span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>II</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>III</mi></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">I</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>IV</mi></math></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Only <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">I</mi></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>II</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>III</mi></math></span> </div>

answer:
<div class="solution"><p>The aromatic alcohols are those compounds in which the hydroxyl group is not directly attached to the nucleus but is linked to a carbon atom situated in a side-chain.</p><p>The compound<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>-</mo><mi mathvariant="normal">I</mi></math> and compound<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>-</mo><mi>II</mi></math> are the phenols, these are not the aromatic alcohols as <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>-</mo><mi>OH</mi></math> group is directly attached to benzene ring.</p><p>The compounds <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>II</mi><mo> </mo><mtext>and</mtext><mo> </mo><mi>III</mi></math> are benzyl alcohols and these are aromatic alcohols as <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>-</mo><mi>OH</mi></math> group is attached to the carbon atom which itself attached to benzene ring.</p><p> </p></div>


title: which-of-the-following-lanthanoid-is-diamagnetic-atomic-nos-sm-62-ce-58-eu-63-yb-70
slug: which-of-the-following-lanthanoid-is-diamagnetic-atomic-nos-sm-62-ce-58-eu-63-yb-70-73440
tags: ['Chemistry', 'd and f Block Elements', 'BITSAT', 'BITSAT 2019']
source_db: MarksBatch2_P4.db
question:
<div class="question"><p>Which of the following lanthanoid is diamagnetic?</p><p>Atomic no's <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Sm</mi><mo>=</mo><mn>62</mn><mo>,</mo><mo> </mo><mi>Ce</mi><mo>=</mo><mn>58</mn><mo>,</mo><mo> </mo><mi>Eu</mi><mo>=</mo><mn>63</mn><mo>,</mo><mo> </mo><mi>Yb</mi><mo>=</mo><mn>70</mn></math></p></div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Sm</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Eu</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Yb</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Ce</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Yb</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> </div>

answer:
<div class="solution"><p>Electronic configuration of the given species are</p><p>a. <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mo>Sm</mo><mrow><mn>2</mn><mo>+</mo></mrow></msup><mfenced><mrow><mi mathvariant="normal">Z</mi><mo>=</mo><mn>62</mn></mrow></mfenced><mo>=</mo><mfenced close="]" open="["><mi>Xe</mi></mfenced><mn>4</mn><msup><mi mathvariant="normal">f</mi><mn>6</mn></msup></math> b. <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Eu</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mfenced><mrow><mi mathvariant="normal">Z</mi><mo>=</mo><mn>63</mn></mrow></mfenced><mo>=</mo><mfenced close="]" open="["><mi>Xe</mi></mfenced><mn>4</mn><msup><mi mathvariant="normal">f</mi><mn>7</mn></msup></math></p><p>c. <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Yb</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mfenced><mrow><mi mathvariant="normal">Z</mi><mo>=</mo><mn>70</mn></mrow></mfenced><mo>=</mo><mfenced close="]" open="["><mi>Xe</mi></mfenced><mn>4</mn><msup><mi mathvariant="normal">f</mi><mn>14</mn></msup></math> d. <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Ce</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mfenced><mrow><mi mathvariant="normal">Z</mi><mo>=</mo><mn>58</mn></mrow></mfenced><mo>=</mo><mfenced close="]" open="["><mi>Xe</mi></mfenced><mn>4</mn><msup><mi mathvariant="normal">f</mi><mn>1</mn></msup><mn>5</mn><msup><mi mathvariant="normal">d</mi><mn>1</mn></msup></math></p><p>On the basis of above electronic configuration, only <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Yb</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mfenced><mrow><mi mathvariant="normal">Z</mi><mo>=</mo><mn>70</mn></mrow></mfenced></math> has no unpaired electrons i.e. has fully-filled orbitals. Thus, it is diamagnetic in nature.</p></div>


tags: ['Physics', 'Electromagnetic Waves', 'BITSAT', 'BITSAT 2023 (Memory Based Paper 1)']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-maxwells-equations-is-valid-for-time-varying-conditions-but-not-valid-for-static-conditions

slug:
which-of-the-following-maxwells-equations-is-valid-for-time-varying-conditions-but-not-valid-for-static-conditions-87294

question:
<div class="question">Which of the following Maxwell's equations is valid for time varying conditions but not valid for static conditions :</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\oint \overrightarrow{\mathrm{B}} \cdot \overrightarrow{\mathrm{dl}}=\mu_0 \mathrm{I}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\oint \overrightarrow{\mathrm{E}} \cdot \overrightarrow{\mathrm{dl}}=0$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\oint \overrightarrow{\mathrm{E}} \cdot \overrightarrow{\mathrm{dl}}=-\frac{\partial \phi_{\mathrm{B}}}{\partial \mathrm{t}}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\oint \overrightarrow{\mathrm{D}} \cdot \overrightarrow{\mathrm{dA}}=\mathrm{Q}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\oint \overrightarrow{\mathrm{E}} \cdot \overrightarrow{\mathrm{dl}}=-\frac{\partial \phi_{\mathrm{B}}}{\partial \mathrm{t}}$</span> </div>

answer:
<div class="solution">For time varying condition Maxwell's equation, $\oint \overrightarrow{\mathrm{E}} \cdot \overrightarrow{\mathrm{dl}}=-\frac{\mathrm{d} \phi_{\mathrm{B}}}{\mathrm{dt}}$</div>


title: which-of-the-following-metal-is-leached-by-cyanide-process
slug: which-of-the-following-metal-is-leached-by-cyanide-process-97599
question: <div class="question">Which of the following metal is leached by cyanide process </div>
tags: ['Chemistry', 'General Principles and Processes of Isolation of Metals', 'BITSAT', 'BITSAT 2017']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Ag</mi></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Na</mi></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Al</mi></math></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Cu</mi></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Ag</mi></math></span> </div>

answer:
<div class="solution"><p>Cyanide process, which is also known as MacArthur cyanide process involves the extraction of gold and silver from their ores by dissolving them in a dilute solution of sodium cyanide or potassium cyanide. The leaching is carried out in the presence of air or oxygen to oxidise the metal.</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Ag</mi></math> is leached by cyanide process by making the complex using <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>NaCN</mi><mo>/</mo><mi>KCN</mi></math> as follows</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Ag</mi><mn>2</mn></msub><mi mathvariant="normal">S</mi><mo>+</mo><mn>4</mn><mi>NaCN</mi><mo>⟶</mo><mn>2</mn><munder><mrow><mi>Na</mi><mfenced close="]" open="["><mrow><mi>Ag</mi><mo>(</mo><mi>CN</mi><msub><mo>)</mo><mn>2</mn></msub></mrow></mfenced></mrow><mi>Soluble</mi></munder><mo>+</mo><msub><mi>Na</mi><mn>2</mn></msub><mi mathvariant="normal">S</mi></math></p></div>


title: which-of-the-following-method-gives-better-yield-of-p-nitrophenol
slug: which-of-the-following-method-gives-better-yield-of-p-nitrophenol-77004
question: <div class="question">Which of the following method gives better yield of $p$ -nitrophenol?</div>
tags: ['Chemistry', 'Hydrocarbons', 'BITSAT', 'BITSAT 2016']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Phenol $\frac{\text { dil.HNO }_{3}}{20^{\circ} \mathrm{C}} p$ -Nitrophenol</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Phenol $\frac{\text { (i) } \mathrm{NaNO}_{2}+\mathrm{H}_{2} \mathrm{SO}_{4}, 7-8^{\circ} \mathrm{C}}{\text { (ii) } \mathrm{HNO}_{3}}$
<br/> <br/>$p$ -Nitrophenol</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Phenol $\frac{\text { (i) } \mathrm{NaOH}}{\text { (ii) Conc. } \mathrm{HNO}_{3}}$,</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">None of the three.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Phenol $\frac{\text { (i) } \mathrm{NaNO}_{2}+\mathrm{H}_{2} \mathrm{SO}_{4}, 7-8^{\circ} \mathrm{C}}{\text { (ii) } \mathrm{HNO}_{3}}$
<br/> <br/>$p$ -Nitrophenol</span> </div>

answer:
<div class="solution"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/wGuzoubugRvIsHr2MKEc1TrMCVmDXTv7MQvtqp0VrrE.original.fullsize.png"/><br/> <br/> <br/>Thus here, oxidation of phenol is minimised by forming $p$ -nitrosophenol.</div>


title: which-of-the-following-method-is-used-for-coagulation-of-the-sol
slug: which-of-the-following-method-is-used-for-coagulation-of-the-sol-62551
question: <div class="question">Which of the following method is used for coagulation of the sol?</div>
tags: ['Chemistry', 'Surface Chemistry', 'BITSAT', 'BITSAT 2023 (Memory Based Paper 1)']
answer: <div class="solution">No Solution Available</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">By mixing two oppositely charged sols.</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">By electrophoresis.</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">By addition of electrolytes.</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">All of the above.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">All of the above.</span> </div>


tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2015']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-moleculeion-has-all-the-three-types-of-bonds-electrovalent-covalent-and-coordinate

slug:
which-of-the-following-moleculeion-has-all-the-three-types-of-bonds-electrovalent-covalent-and-coordinate-10511

question:
<div class="question">Which of the following molecule/ion has all the three types of bonds, electrovalent, covalent and co-ordinate:</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{HCl}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{NH}_{4}^{+}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{Cl}^{-}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{H}_{2} \mathrm{O}_{2}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{NH}_{4}^{+}$</span> </div>

answer:
<div class="solution">Bond structure of molecules are:
<br/> <br/>$\mathrm{HCl}=\mathrm{H}^{+}-\mathrm{Cl}^{-}$
<br/> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/FxJrv1IChOVhvGmxCIMv3hnNqiKj8TAl84j1vusc4kM.original.fullsize.png"/><br/> <br/> <br/>hence, clearly $\mathrm{NH}_{4}^{+}$ ion contains all three types of bonds.</div>


title: which-of-the-following-molecules-acts-as-a-lewis-acid
slug: which-of-the-following-molecules-acts-as-a-lewis-acid-44036
question: <div class="question">Which of the following molecules acts as a Lewis acid?</div>
tags: ['Chemistry', 'Ionic Equilibrium', 'BITSAT', 'BITSAT 2023 (Memory Based Paper 2)']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\left(\mathrm{CH}_3\right)_2 \mathrm{O}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\left(\mathrm{CH}_3\right)_3 \mathrm{P}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\left(\mathrm{CH}_3\right)_3 \mathrm{~N}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">$\left(\mathrm{CH}_3\right)_3 \mathrm{~B}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\left(\mathrm{CH}_3\right)_3 \mathrm{~B}$</span> </div>

answer:
<div class="solution">According to Lewis concept "Acids are electron acceptor and bases are electron donor" Since, electron deficient compounds also have an ability to accept electrons, these are regarded as acids.<br/>Trimethylborane \((\mathrm{CH})_3\) B have incomplete octet thus, act as Lewis acid.<br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/kjxc7ecut7tvvcfsre4.png"/></div>


title: which-of-the-following-must-be-known-in-order-to-determine-the-power-output-of-an-automobile
slug: which-of-the-following-must-be-known-in-order-to-determine-the-power-output-of-an-automobile-33608
tags: ['Physics', 'Work Power Energy', 'BITSAT', 'BITSAT 2012']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following must be known in order to determine the power output of an automobile?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Final velocity and height</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Mass and amount of work performed</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Force exerted and distance of motion</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">Work performed and elapsed time of work</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Work performed and elapsed time of work</span> </div>

answer:
<div class="solution">Power is defined as the rate of doing work. For the automobile, the power output is the amount of work done (overcoming friction) divided by the length of time in which the work was done.</div>


title: which-of-the-following-order-is-not-correct
slug: which-of-the-following-order-is-not-correct-87161
question: <div class="question">Which of the following order is not correct?</div>
tags: ['Chemistry', 'Haloalkanes and Haloarenes', 'BITSAT', 'BITSAT 2009']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{MeBr}&gt;\mathrm{Me}_{2} \mathrm{CHBr}&gt;\mathrm{Me}_{3} \mathrm{CBr}&gt;$<br/>$\mathrm{Et}_{3} \mathrm{CBr}\left(\mathrm{S}_{\mathrm{N}} 2\right)$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{Me}_{3} \mathrm{CBr}&gt;\mathrm{Me}_{2} \mathrm{CHBr}&gt;\mathrm{Me}_{2} \mathrm{CH.CH}_{2} \mathrm{Br}&gt;$<br/>$\mathrm{MeCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{Br} .\left(\mathrm{E}_{2}\right)$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{PhCH}_{2} \mathrm{Br}&gt;\mathrm{Ph} \mathrm{CHBrMe}&gt;\mathrm{PhCBrMe}_{2}&gt;$<br/>$\operatorname{PhCBrMePh}\left(\mathrm{S}_{\mathrm{N}} 1\right)$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{MeI}&gt;\mathrm{MeBr}&gt;\mathrm{MeCl}&gt;\mathrm{MeF}\left(\mathrm{S}_{\mathrm{N}} 2\right)$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{PhCH}_{2} \mathrm{Br}&gt;\mathrm{Ph} \mathrm{CHBrMe}&gt;\mathrm{PhCBrMe}_{2}&gt;$<br/>$\operatorname{PhCBrMePh}\left(\mathrm{S}_{\mathrm{N}} 1\right)$</span> </div>

answer:
<div class="solution">The more is the stability of intermediate carbonium ion, the more is the chance of $\mathrm{S}_{\mathrm{N}} 1$ mechanism. The intermediates obtained will be <br/>$\mathrm{Ph}^{+} \mathrm{C} \mathrm{H}_{2}(\mathrm{i}), \mathrm{Ph} \mathrm{C} \mathrm{H}-\mathrm{Me}(\mathrm{ii})$<br/>$\mathrm{Ph} \mathrm{C}-\mathrm{Me}_{2}\left(\right.$ iii) $, \mathrm{Ph} \mathrm{C}^{+} \mathrm{MePh}$ (iv)<br/>The stabilty is of the order iv $&gt;\mathrm{iii}&gt;\mathrm{ii}&gt;\mathrm{i}$</div>


title: which-of-the-following-oxo-acid-of-sulphur-has-oo-bond
slug: which-of-the-following-oxo-acid-of-sulphur-has-oo-bond-49995
question: <div class="question">Which of the following oxo acid of sulphur has O-O bond?</div>
source_db: MarksBatch2_P4.db
tags:
['Chemistry', 'p Block Elements (Group 15, 16, 17 & 18)', 'BITSAT', 'BITSAT 2023 (Memory Based Paper 2)']

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_7$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_8$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_6$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{H}_2 \overline{\mathrm{S}}_2 \mathrm{O}_5$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{H}_2 \mathrm{~S}_2 \mathrm{O}_8$</span> </div>

answer:
<div class="solution"><br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/KeU4GARjqcbABo17ABpNbO5LLVFIhokpTdsR75Un4ys.original.fullsize.png"/><br/></div>


title: which-of-the-following-pairs-has-both-members-from-the-same-period-of-periodic-table
slug: which-of-the-following-pairs-has-both-members-from-the-same-period-of-periodic-table-24100
tags: ['Chemistry', 'Classification of Elements and Periodicity in Properties', 'BITSAT', 'BITSAT 2010']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following pairs has both members from the same period of periodic table:</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{Na}, \mathrm{Ca}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{Na}, \mathrm{Cl}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{Ca}, \mathrm{Cl}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{Cl}, \mathrm{Br}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Na}, \mathrm{Cl}$</span> </div>

answer:
<div class="solution">$_{11} \mathrm{Na} \Rightarrow 2,8,1 ;{ }_{17} \mathrm{Cl} \Rightarrow 2,8,7$<br/>These have same number of shells. Hence, they are the elements of the same period.</div>


title: which-of-the-following-pairs-has-the-same-size-2
slug: which-of-the-following-pairs-has-the-same-size-2-70358
question: <div class="question">Which of the following pairs has the same size?</div>
tags: ['Chemistry', 'd and f Block Elements', 'BITSAT', 'BITSAT 2011']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{Fe}^{2+}, \mathrm{Ni}^{2+}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{Zr}^{4+}, \mathrm{Ti}^{4+}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{Zr}^{4+}, \mathrm{Hf}^{4+}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{Zn}^{2+}, \mathrm{Hf}^{4+}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Zr}^{4+}, \mathrm{Hf}^{4+}$</span> </div>

answer:
<div class="solution">Due to lanthanide contraction, the size of $\mathrm{Zr}$ and $\mathrm{Hf}$ (atom and ions) become nearly similar.</div>


title: which-of-the-following-pairs-will-form-the-most-stable-ionic-bond
slug: which-of-the-following-pairs-will-form-the-most-stable-ionic-bond-74358
question: <div class="question">Which of the following pairs will form the most stable ionic bond?</div>
source_db: MarksBatch2_P4.db
tags:
['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2023 (Memory Based Paper 1)']

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"> $\mathrm{Na}$ and $\mathrm{Cl}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{Mg}$ and $\mathrm{F}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{Li}$ and $\mathrm{F}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{Na}$ and F</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Mg}$ and $\mathrm{F}$</span> </div>

answer:
<div class="solution">The stability of the ionic bond depends upon the lattice energy which is expected to be more between $\mathrm{Mg}$ and $\mathrm{F}$ due to +2 charge on Mg atom.</div>


title: which-of-the-following-pollutants-is-main-product-of-automobiles-exhaust
slug: which-of-the-following-pollutants-is-main-product-of-automobiles-exhaust-48049
tags: ['Chemistry', 'Environmental Chemistry', 'BITSAT', 'BITSAT 2015']
answer: <div class="solution">NO pollutant is the main product of automobiles exhaust.</div>
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following pollutants is main product of automobiles exhaust?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{CO}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{CO}_{2}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{NO}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Hydrocarbons</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{NO}$</span> </div>


title: which-of-the-following-process-is-possible-according-to-the-first-law-of-thermodynamics
slug: which-of-the-following-process-is-possible-according-to-the-first-law-of-thermodynamics-31762
tags: ['Physics', 'Thermodynamics', 'BITSAT', 'BITSAT 2012']
answer: <div class="solution">Correct answer is (c) \(W &gt; 0, Q &lt; 0\) and \(d U &lt; 0\)</div>
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following process is possible according to the first law of thermodynamics?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{W}&gt;0, \mathrm{Q}&lt;0$ and $\mathrm{dU}=0$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{W}&gt;0, \mathrm{Q}&lt;0$ and $\mathrm{dU}&gt;0$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\quad \mathrm{W}&gt;0, \mathrm{Q}&lt;0$ and $\mathrm{dU}&lt;0$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{W}&lt;0, \mathrm{Q}&gt;0$ and $\mathrm{dU}&lt;0$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\quad \mathrm{W}&gt;0, \mathrm{Q}&lt;0$ and $\mathrm{dU}&lt;0$</span> </div>


title: which-of-the-following-property-of-alkaline-earth-metal-increases-with-their-atomic-number
slug: which-of-the-following-property-of-alkaline-earth-metal-increases-with-their-atomic-number-36525
tags: ['Chemistry', 's Block Elements', 'BITSAT', 'BITSAT 2018']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following property of alkaline earth metal increases with their atomic number?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">electronegativity</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">solubility of their hydroxides in water</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">solubility of their sulphate in water</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">ionisation energy</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">solubility of their hydroxides in water</span> </div>

answer:
<div class="solution">The lattice energy of the hydroxides of alkaline earth metal decreases more rapidly than their hydration energy leading to more negative value of <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>ΔH</mi><mtext>sol</mtext></msub></math> down the group. More negative is <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>ΔH</mi><mtext>sol</mtext></msub></math>, more is the solubility of compounds. Hence the solubility of hydroxides of alkaline earth metal increases with their atomic number.</div>


tags: ['Physics', 'Current Electricity', 'BITSAT', 'BITSAT 2010']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-quantities-do-not-change-when-a-resistor-connected-to-a-battery-is-heated-due-to-the-current

slug:
which-of-the-following-quantities-do-not-change-when-a-resistor-connected-to-a-battery-is-heated-due-to-the-current-51656

question:
<div class="question">Which of the following quantities do not change when a resistor connected to a battery is heated due to the current?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Drift speed</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Resistivity</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Resistance</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">Number of free electrons</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Number of free electrons</span> </div>

answer:
<div class="solution">Only number of free electrons is constant, other factors are temperature dependent.</div>


tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'BITSAT', 'BITSAT 2019']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-reactants-is-used-for-the-preparation-of-ethyl-benzene-where-anhy-alcl-3-is-a-catalyst

slug:
which-of-the-following-reactants-is-used-for-the-preparation-of-ethyl-benzene-where-anhy-alcl-3-is-a-catalyst-83854

question:
<div class="question">Which of the following reactants is used for the preparation of ethyl benzene, where anhy. <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>AlCl</mi><mn>3</mn></msub></math> is a catalyst?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>3</mn></msub><mo>·</mo><msub><mi>CH</mi><mn>2</mn></msub><mo>·</mo><mi>OH</mi><mo>+</mo><msub><mi mathvariant="normal">C</mi><mn>6</mn></msub><msub><mi mathvariant="normal">H</mi><mn>6</mn></msub></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>3</mn></msub><mo>-</mo><mi>CH</mi><mo>=</mo><msub><mi>CH</mi><mn>2</mn></msub><mo>+</mo><msub><mi mathvariant="normal">C</mi><mn>6</mn></msub><msub><mi mathvariant="normal">H</mi><mn>6</mn></msub></math></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">C</mi><mo>=</mo><msub><mi>CH</mi><mn>2</mn></msub><mo>+</mo><msub><mi mathvariant="normal">C</mi><mn>6</mn></msub><msub><mi mathvariant="normal">H</mi><mn>6</mn></msub></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>3</mn></msub><mo>-</mo><msub><mi>CH</mi><mn>3</mn></msub><mo>+</mo><msub><mi mathvariant="normal">C</mi><mn>6</mn></msub><msub><mi mathvariant="normal">H</mi><mn>6</mn></msub></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">C</mi><mo>=</mo><msub><mi>CH</mi><mn>2</mn></msub><mo>+</mo><msub><mi mathvariant="normal">C</mi><mn>6</mn></msub><msub><mi mathvariant="normal">H</mi><mn>6</mn></msub></math></span> </div>

answer:
<div class="solution"><p>Fridel crafts Alkylation of Benzene takes place when ALkyl halide reacted with Benzene in presence of Anhydrous <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>AlCl</mi><mn>3</mn></msub></math>â. </p><p>Now Alkenes can form Alkyl Benzene in Industrial process. The process involves the reaction of Benzene and Ethylene in presence of an Anhydrous <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>AlCl</mi><mn>3</mn></msub></math>catalyst promoted by <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>HCl</mi></math>.</p><p>The <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">C</mi><mo>=</mo><msub><mi>CH</mi><mn>2</mn></msub><mo>+</mo><msub><mi mathvariant="normal">C</mi><mn>6</mn></msub><msub><mi mathvariant="normal">H</mi><mn>6</mn></msub></math> on reaction produce ethyl benzene as follows</p><p><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/f9e33fd5-2ade-48d9-87b1-ea9d74edfc6d-image.png" style="width: 565px; height: 189px;"/></p></div>


tags: ['Chemistry', 'Thermodynamics (C)', 'BITSAT', 'BITSAT 2017']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-reactions-does-not-involve-absorption-of-energy-i-o-g-e-o-g-ii-s-g-e-s-g-iii-o-g-e-o-2-g-iv-cl-g-e-cl-g

slug:
which-of-the-following-reactions-does-not-involve-absorption-of-energy-i-o-g-e-o-g-ii-s-g-e-s-g-iii-o-g-e-o-2-g-iv-cl-g-e-cl-g-92926

question:
<div class="question"><p>Which of the following reactions does not involve absorption of energy?</p><p>I. <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">O</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msup><mi mathvariant="normal">e</mi><mo>-</mo></msup><mo>⟶</mo><msup><mi mathvariant="normal">O</mi><mo>-</mo></msup><mfenced><mi mathvariant="normal">g</mi></mfenced></math></p><p>II. <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">S</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msup><mi mathvariant="normal">e</mi><mo>-</mo></msup><mo>⟶</mo><msup><mi mathvariant="normal">S</mi><mo>-</mo></msup><mfenced><mi mathvariant="normal">g</mi></mfenced></math></p><p>III. <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi mathvariant="normal">O</mi><mo>-</mo></msup><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msup><mi mathvariant="normal">e</mi><mo>-</mo></msup><mo>⟶</mo><msup><mi mathvariant="normal">O</mi><mrow><mn>2</mn><mo>-</mo></mrow></msup><mfenced><mi mathvariant="normal">g</mi></mfenced></math></p><p>IV. <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>Cl</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msup><mi mathvariant="normal">e</mi><mo>-</mo></msup><mo>⟶</mo><msup><mi>Cl</mi><mo>-</mo></msup><mfenced><mi mathvariant="normal">g</mi></mfenced></math></p></div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Only <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>II</mi></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">I</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>III</mi></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">I</mi><mo>,</mo><mo> </mo><mi>II</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>III</mi></math></span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">I</mi><mo>,</mo><mo> </mo><mi>II</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>IV</mi></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">I</mi><mo>,</mo><mo> </mo><mi>II</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>IV</mi></math></span> </div>

answer:
<div class="solution"><blockquote><p>Reaction <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi mathvariant="normal">I</mi><mo>)</mo><mo>,</mo><mo>(</mo><mi>II</mi><mo>)</mo></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi>IV</mi><mo>)</mo></math> are of exothermic nature, thus do not involve absorption energy.</p><p>The process <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi mathvariant="normal">O</mi><mo>-</mo></msup><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msup><mi mathvariant="normal">e</mi><mo>-</mo></msup><mo>⟶</mo><msup><mi mathvariant="normal">O</mi><mrow><mn>2</mn><mo>-</mo></mrow></msup><mfenced><mi mathvariant="normal">g</mi></mfenced></math>â involves absorption of energy.</p><p>When a neutral atom gains an electron, energy is released. When an anion (having unit negative charge) gains an electron, energy is absorbed. This is due to the repulsion between the additional electron and negatively charged anion.</p></blockquote></div>


title: which-of-the-following-reactions-increases-the-production-of-dihydrogen-from-synthesis-gas
slug: which-of-the-following-reactions-increases-the-production-of-dihydrogen-from-synthesis-gas-18136
tags: ['Chemistry', 'Hydrogen', 'BITSAT', 'BITSAT 2018']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following reactions increases the production of dihydrogen from synthesis gas?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>4</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><munderover><mo>→</mo><mi>Ni</mi><mrow><mn>1270</mn><mo> </mo><mi mathvariant="normal">K</mi></mrow></munderover><mi>CO</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><mn>3</mn><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">C</mi><mfenced><mi mathvariant="normal">s</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mover><mo>⟶</mo><mrow><mn>1270</mn><mo> </mo><mi mathvariant="normal">K</mi></mrow></mover><mi>CO</mi><mfenced><mi>g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced></math></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>CO</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><munderover><mo>→</mo><mrow><mi>Catalyst</mi><mo> </mo></mrow><mrow><mn>673</mn><mo> </mo><mi mathvariant="normal">K</mi></mrow></munderover><msub><mi>CO</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">C</mi><mn>2</mn></msub><msub><mi mathvariant="normal">H</mi><mn>6</mn></msub><mo>+</mo><mn>2</mn><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><munderover><mo>→</mo><mi>Ni</mi><mrow><mn>1270</mn><mo> </mo><mi mathvariant="normal">K</mi></mrow></munderover><mn>2</mn><mi>CO</mi><mo>+</mo><mn>5</mn><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub></math>,</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>CO</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><munderover><mo>→</mo><mrow><mi>Catalyst</mi><mo> </mo></mrow><mrow><mn>673</mn><mo> </mo><mi mathvariant="normal">K</mi></mrow></munderover><msub><mi>CO</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced></math></span> </div>

answer:
<div class="solution"><blockquote><p>The process of producing syn gas or synthesis gas from coal is called 'coal gasification'.</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><munder><mrow><mi mathvariant="normal">C</mi><mfenced><mi mathvariant="normal">s</mi></mfenced></mrow><mi>Coal</mi></munder><mo>+</mo><munder><mrow><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mfenced><mi mathvariant="normal">g</mi></mfenced></mrow><mi>Steam</mi></munder><munderover><mo>→</mo><mi>Ni</mi><mrow><mn>1270</mn><mo> </mo><mi mathvariant="normal">K</mi></mrow></munderover><munder><munder><mrow><mi>CO</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced></mrow><mo>⏟</mo></munder><mrow><mi>Synthesis</mi><mo>gas</mo></mrow></munder></math></p><p>The production of hydrogen can be increased by reacting carbon monoxide of the syn gas with steam in the presence of iron chromate as a catalyst at <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>673</mn><mo> </mo><mi mathvariant="normal">K</mi></math>.</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>CO</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mover><mo>⟶</mo><mrow><msub><mi>FeCrO</mi><mn>4</mn></msub><mo>,</mo><mo> </mo><mn>673</mn><mo> </mo><mi mathvariant="normal">K</mi></mrow></mover><msub><mi>CO</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced></math></p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CO</mi><mn>2</mn></msub></math> is removed by scrubbing with a solution of sodium arsenite.</p></blockquote></div>


title: which-of-the-following-reactions-is-an-example-of-calcination-process
slug: which-of-the-following-reactions-is-an-example-of-calcination-process-26248
question: <div class="question">Which of the following reactions is an example of calcination process?</div>
tags: ['Chemistry', 'General Principles and Processes of Isolation of Metals', 'BITSAT', 'BITSAT 2017']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>2</mn><mi>Ag</mi><mo>+</mo><mn>2</mn><mi>HCl</mi><mo>+</mo><mfenced close="]" open="["><mi mathvariant="normal">O</mi></mfenced><mo>⟶</mo><mn>2</mn><mi>AgCl</mi><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>2</mn><mi>Zn</mi><mo>+</mo><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub><mo>⟶</mo><mn>2</mn><mi>ZnO</mi></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>2</mn><mi>ZnS</mi><mo>+</mo><mn>3</mn><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub><mo>⟶</mo><mn>2</mn><mi>ZnO</mi><mo>+</mo><mn>2</mn><msub><mi>SO</mi><mn>2</mn></msub></math></span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>MgCO</mi><mn>3</mn></msub><mover><mo>⟶</mo><mi mathvariant="normal">Δ</mi></mover><mi>MgO</mi><mo>+</mo><msub><mi>CO</mi><mn>2</mn></msub></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>MgCO</mi><mn>3</mn></msub><mover><mo>⟶</mo><mi mathvariant="normal">Δ</mi></mover><mi>MgO</mi><mo>+</mo><msub><mi>CO</mi><mn>2</mn></msub></math></span> </div>

answer:
<div class="solution"><p>The process of conversion of a concentrated ore into its oxide by heating in absence of or in limited supply of air is called calcination. It is usually done for hydroxide, hydrated oxides and carbonate ores.</p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>MgCO</mi><mn>3</mn></msub><mover><mo>⟶</mo><mi mathvariant="normal">Δ</mi></mover><mi>MgO</mi><mo>+</mo><msub><mi>CO</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced></math></p></div>


tags: ['Chemistry', 'Hydrogen', 'BITSAT', 'BITSAT 2019']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-reactions-is-an-example-of-use-of-water-gas-in-the-synthesis-of-other-compounds-1

slug:
which-of-the-following-reactions-is-an-example-of-use-of-water-gas-in-the-synthesis-of-other-compounds-1-46734

question:
<div class="question">Which of the following reactions is an example of use of water gas in the synthesis of other compounds?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>4</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><munderover><mo>→</mo><mi>Ni</mi><mrow><mn>1270</mn><mo> </mo><mi mathvariant="normal">K</mi></mrow></munderover><mi>CO</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>CO</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><munderover><mo>→</mo><mi>Catalyst</mi><mrow><mn>673</mn><mo> </mo><mi mathvariant="normal">K</mi></mrow></munderover><msub><mi>CO</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">C</mi><mi mathvariant="normal">n</mi></msub><msub><mi mathvariant="normal">H</mi><mrow><mn>2</mn><mi mathvariant="normal">n</mi><mo>+</mo><mn>2</mn></mrow></msub><mo>+</mo><mi mathvariant="normal">n</mi><mo>.</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><munderover><mo>→</mo><mi>Ni</mi><mrow><mn>1270</mn><mo> </mo><mi mathvariant="normal">K</mi></mrow></munderover><mi mathvariant="normal">n</mi><mo>.</mo><mi>CO</mi><mo>+</mo><mfenced><mrow><mn>2</mn><mi mathvariant="normal">n</mi><mo>+</mo><mn>1</mn></mrow></mfenced><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub></math></span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>CO</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><mn>2</mn><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced><munderover><mo>→</mo><mi>Catalyst</mi><mi>Cobalt</mi></munderover><msub><mi>CH</mi><mn>3</mn></msub><mo>·</mo><mi>OH</mi><mfenced><mi mathvariant="normal">I</mi></mfenced></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>CO</mi><mfenced><mi mathvariant="normal">g</mi></mfenced><mo>+</mo><mn>2</mn><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced><munderover><mo>→</mo><mi>Catalyst</mi><mi>Cobalt</mi></munderover><msub><mi>CH</mi><mn>3</mn></msub><mo>·</mo><mi>OH</mi><mfenced><mi mathvariant="normal">I</mi></mfenced></math></span> </div>

answer:
<div class="solution"><p>The mixture of <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>CO</mi><mfenced><mi mathvariant="normal">g</mi></mfenced></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced></math> is known water gas as it is used in the synthesis of other compounds.</p><p>When carbon monoxide reacts with hydrogen in presence of catalyst cobalt the product formed is methanol. Therefore, water gas is producing a an alcohol in this reaction.</p><p><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/6803a5b7-299e-41c6-9ec2-3050566c05b1-image.png" style="width: 481px; height: 131px;"/></p></div>


title: which-of-the-following-reactions-will-not-give-n-n-dimethyl-benzamide-1
slug: which-of-the-following-reactions-will-not-give-n-n-dimethyl-benzamide-1-90605
tags: ['Chemistry', 'Carboxylic Acid Derivatives', 'JEE Main']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following reactions will not give $\mathrm{N}, \mathrm{N}$ -dimethyl benzamide?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/KJzCI6J3oHeb1lwkCJE5UB6dpN1sXSgG4YdxKoV8NWg.original.fullsize.png"/></span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/JyrHBgfECemskDNv3EX2G3JNbKDL8Si00IYJ5r3Ok4U.original.fullsize.png"/></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/7ikx4-xYIVO9nJSWyiCzE4Wtr9m8nDbVYcc29krZPaE.original.fullsize.png"/></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/fcpbHqzmUl-QcuF0XB7AYpC3rO5NNx4cEs4rvGDM6wI.original.fullsize.png"/></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/JyrHBgfECemskDNv3EX2G3JNbKDL8Si00IYJ5r3Ok4U.original.fullsize.png"/></span> </div>

answer:
<div class="solution">(a) $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COOC}_{2} \mathrm{H}_{5}+\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH} \rightarrow$
<br/> <br/>$\mathrm{C}_{6} \mathrm{H}_{5}\mathrm{CON}\left(\mathrm{CH}_{3}\right)_{2}+\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$
<br/> <br/>(b) $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CONH}_{2}+\mathrm{CH}_{3} \mathrm{MgI}$
<br/> <br/>$\rightarrow \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CONH} \mathrm{MgI}+\mathrm{CH}_{4}$
<br/> <br/>(c) $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COCl}+\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH} \rightarrow$
<br/> <br/>$\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CON}\left(\mathrm{CH}_{3}\right)_{2}+\mathrm{HCl}$
<br/> <br/>(d) $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CO} . \mathrm{O} . \mathrm{COC}_{6} \mathrm{H}_{5}+$
<br/> <br/>$\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH} \rightarrow \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CON}\left(\mathrm{CH}_{3}\right)_{2}$
<br/> <br/>$+\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COOH}$</div>


title: which-of-the-following-represents-hexadentate-ligand
slug: which-of-the-following-represents-hexadentate-ligand-33211
question: <div class="question">Which of the following represents hexadentate ligand?</div>
tags: ['Chemistry', 'Coordination Compounds', 'BITSAT', 'BITSAT 2015']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">EDTA</span> </div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">EDTA</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">DMG</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Ethylenediamine</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">None of the above</span> </li> </ul>

answer:
<div class="solution">EDTA is hexadentate ligand
<br/> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/Sjg1YAHX0iZTNFeGHJyM1tChDWhtg57g8c8TVsKYuO8.original.fullsize.png"/></div>


title: which-of-the-following-represents-the-correct-order-of-cl-o-bond-lengths-in-clo-clo-2-clo-3-clo-4
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2021']
source_db: MarksBatch2_P4.db
slug:
which-of-the-following-represents-the-correct-order-of-cl-o-bond-lengths-in-clo-clo-2-clo-3-clo-4-76667

question:
<div class="question">Which of the following represents the correct order of $\mathrm{Cl}-\mathrm{O}$ bond lengths in
<br/> <br/>$\mathrm{ClO}^{-}, \mathrm{ClO}_{2}^{-}, \mathrm{ClO}_{3}^{-}, \mathrm{ClO}_{4}^{-} \text {? }$</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{ClO}_{4}^{-}=\mathrm{ClO}_{3}^{-}=\mathrm{ClO}_{2}^{-}=\mathrm{ClO}^{-}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{ClO}^{-} &lt; \mathrm{ClO}_{2}^{-} &lt; \mathrm{ClO}_{3}^{-} &lt; \mathrm{ClO}_{4}^{-}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{ClO}_{4}^{-} &lt; \mathrm{ClO}_{3}^{-} &lt; \mathrm{ClO}_{2}^{-} &lt; \mathrm{ClO}^{-}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{ClO}_{3}^{-} &lt; \mathrm{ClO}_{4}^{-} &lt; \mathrm{ClO}_{2}^{-} &lt; \mathrm{ClO}^{-}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{ClO}_{4}^{-} &lt; \mathrm{ClO}_{3}^{-} &lt; \mathrm{ClO}_{2}^{-} &lt; \mathrm{ClO}^{-}$</span> </div>

answer:
<div class="solution">The b.o in $\mathrm{Cl}-\mathrm{O}^{-}$is 1
<br/> <br/>The b.o in $\mathrm{O}=\mathrm{Cl}-\mathrm{O}^{-}$is $1.5$
<br/> <br/>The b.o. in $\mathrm{O}=\mathrm{Cl}=\mathrm{O}$ is $\frac{5}{3}=1.66$
<br/> <br/>The b.o. in $\mathrm{O}=\underset{\mathrm{O}}{\stackrel{\mathrm{O}}{\|}} \mathrm{l}-\mathrm{O}^{-}$is $\frac{7}{4}=1.75$
<br/> <br/>The bond length increases as b.o. decreases.</div>


tags: ['Chemistry', 's Block Elements', 'BITSAT', 'BITSAT 2019']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-salt-would-give-so-2-with-hot-and-dil-h-2-so-4-and-also-decolourises-br-2-water

slug:
which-of-the-following-salt-would-give-so-2-with-hot-and-dil-h-2-so-4-and-also-decolourises-br-2-water-35739

question:
<div class="question">Which of the following salt would give <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>SO</mi><mn>2</mn></msub></math> with hot and dil <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><msub><mi>SO</mi><mn>4</mn></msub></math> and also decolourises <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Br</mi><mn>2</mn></msub></math> water?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Na</mi><mn>2</mn></msub><msub><mi>SO</mi><mn>3</mn></msub></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>NaHSO</mi><mn>4</mn></msub></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Na</mi><mn>2</mn></msub><msub><mi>SO</mi><mn>4</mn></msub></math></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Na</mi><mn>2</mn></msub><mo> </mo><mi mathvariant="normal">S</mi></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Na</mi><mn>2</mn></msub><msub><mi>SO</mi><mn>3</mn></msub></math></span> </div>

answer:
<div class="solution"><p>When <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Na</mi><mn>2</mn></msub><msub><mi>SO</mi><mn>3</mn></msub></math> reacts with hot and dil <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><msub><mi>SO</mi><mn>4</mn></msub><mo>,</mo></math> it gives <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>SO</mi><mn>2</mn></msub><mfenced><mi mathvariant="normal">g</mi></mfenced></math> which decolourises bromine-water.</p><p>The reaction proceed as follows:</p><p>(i) <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Na</mi><mn>2</mn></msub><msub><mi>SO</mi><mn>3</mn></msub><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><msub><mi>SO</mi><mn>4</mn></msub><mo>⟶</mo><msub><mi>Na</mi><mn>2</mn></msub><msub><mi>SO</mi><mn>4</mn></msub><mo>+</mo><msub><mi>SO</mi><mn>2</mn></msub><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></math></p><p>(ii) <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>Br</mi><mn>2</mn></msub><mo>+</mo><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi><mo>⟶</mo><mn>2</mn><mi>HBr</mi><mo>+</mo><mfenced close="]" open="["><mi mathvariant="normal">O</mi></mfenced></math></p><p>(iii) <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>SO</mi><mn>2</mn></msub><mo>+</mo><mfenced close="]" open="["><mi mathvariant="normal">O</mi></mfenced><mo>⟶</mo><msub><mi>SO</mi><mn>3</mn></msub></math> (decolourisation of bromine-water)</p></div>


title: which-of-the-following-set-contains-species-having-same-angle-around-the-central-atom
slug: which-of-the-following-set-contains-species-having-same-angle-around-the-central-atom-26147
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2021']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following set contains species having same angle around the central atom?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{SF}_{4}, \mathrm{CH}_{4}, \mathrm{NH}_{3}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{NF}_{3}, \mathrm{BCl}_{3}, \mathrm{NH}_{3}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{BF}_{3}, \mathrm{NF}_{3}, \mathrm{AlCl}_{3}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">$\mathrm{BF}_{3}, \mathrm{BCl}_{3}, \mathrm{BBr}_{3}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{BF}_{3}, \mathrm{BCl}_{3}, \mathrm{BBr}_{3}$</span> </div>

answer:
<div class="solution">$\mathrm{BF}_{3}, \mathrm{BCl}_{3}, \mathrm{BBr}_{3}$ are $s p^{2}$ hybridised. So, all have same structure and bond angle i.e. $120^{\circ}$.</div>


tags: ['Chemistry', 'Thermodynamics (C)', 'BITSAT', 'BITSAT 2017']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-show-an-increase-in-entropy-i-boiling-of-water-ii-melting-of-ice-iii-freezing-of-water-iv-formation-of-hydrogen-gas-from-water

slug:
which-of-the-following-show-an-increase-in-entropy-i-boiling-of-water-ii-melting-of-ice-iii-freezing-of-water-iv-formation-of-hydrogen-gas-from-water-86929

question:
<div class="question"><p>Which of the following show an increase in entropy?</p><p>I. Boiling of water</p><p>II. Melting of ice</p><p>III. Freezing of water</p><p>IV. Formation of hydrogen gas from water</p></div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi mathvariant="normal">I</mi><mo>)</mo></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi>II</mi><mo>)</mo></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Only <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi>III</mi><mo>)</mo></math></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi mathvariant="normal">I</mi><mo>)</mo><mo>,</mo><mo> </mo><mo>(</mo><mi>II</mi><mo>)</mo></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi>IV</mi><mo>)</mo></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi>III</mi><mo>)</mo></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi>IV</mi><mo>)</mo></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi mathvariant="normal">I</mi><mo>)</mo><mo>,</mo><mo> </mo><mo>(</mo><mi>II</mi><mo>)</mo></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi>IV</mi><mo>)</mo></math></span> </div>

answer:
<div class="solution"><p>Entropy is the measure of disorderliness. It means as disorderliness increases entropy increases.</p><p>Melting of ice leads to the formation of liquid water where the particles are in random motion which leads to an increase in entropy.</p><p>Option (c) is the correct option as in <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi mathvariant="normal">i</mi><mo>)</mo><mo>,</mo><mo>(</mo><mi>ii</mi><mo>)</mo></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi>iv</mi><mo>)</mo></math> the state changes towards more random state, thus entropy increases.</p></div>


title: which-of-the-following-show-maximum-bondorder
slug: which-of-the-following-show-maximum-bondorder-64751
question: <div class="question">Which of the following show maximum bond-order? </div>
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2017']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mi mathvariant="normal">O</mi><mn>2</mn><mo>-</mo></msubsup></math></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mi mathvariant="normal">O</mi><mn>2</mn><mo>+</mo></msubsup></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mi mathvariant="normal">O</mi><mn>2</mn><mrow><mn>2</mn><mo>-</mo></mrow></msubsup></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mi mathvariant="normal">O</mi><mn>2</mn><mo>+</mo></msubsup></math></span> </div>

answer:
<div class="solution"><p><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∵</mo></math> Bond order <math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mi>BO</mi></mfenced><mo>=</mo><mfrac><mrow><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">b</mi></msub><mo>-</mo><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">a</mi></msub></mrow><mn>2</mn></mfrac></math></p><p>Here, <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">b</mi></msub></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">N</mi><mi mathvariant="normal">a</mi></msub></math> are the number of bonding and anti bonding electrons, respectively.</p><p>for <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi mathvariant="normal">O</mi><mn>2</mn></msub><mo>,</mo><mi>BO</mi><mo>=</mo><mfrac><mrow><mn>10</mn><mo>-</mo><mn>6</mn></mrow><mn>2</mn></mfrac><mo>=</mo><mn>2</mn></math></p><p>for <math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mi mathvariant="normal">O</mi><mn>2</mn><mo>-</mo></msubsup><mo>,</mo><mi>BO</mi><mo>=</mo><mfrac><mrow><mn>10</mn><mo>-</mo><mn>7</mn></mrow><mn>2</mn></mfrac><mo>=</mo><mn>1</mn><mo>.</mo><mn>5</mn></math></p><p>for <math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mi mathvariant="normal">O</mi><mn>2</mn><mo>+</mo></msubsup><mo>,</mo><mi>BO</mi><mo>=</mo><mfrac><mrow><mn>10</mn><mo>-</mo><mn>5</mn></mrow><mn>2</mn></mfrac><mo>=</mo><mn>2</mn><mo>.</mo><mn>5</mn></math></p><p>for <math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mi mathvariant="normal">O</mi><mn>2</mn><mrow><mn>2</mn><mo>-</mo></mrow></msubsup><mo>,</mo><mi>BO</mi><mo>=</mo><mfrac><mrow><mn>10</mn><mo>-</mo><mn>8</mn></mrow><mn>2</mn></mfrac><mo>=</mo><mn>1</mn></math></p><p>Hence, maximum value for <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>BO</mi></math> is for <math xmlns="http://www.w3.org/1998/Math/MathML"><msubsup><mi mathvariant="normal">O</mi><mn>2</mn><mo>+</mo></msubsup></math>.</p></div>


title: which-of-the-following-shows-maximum-magnetic-moment
slug: which-of-the-following-shows-maximum-magnetic-moment-20069
question: <div class="question">Which of the following shows maximum magnetic moment? </div>
tags: ['Chemistry', 'Coordination Compounds', 'BITSAT', 'BITSAT 2017']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Mg</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Ti</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi mathvariant="normal">V</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup></math></span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Fe</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Fe</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math></span> </div>

answer:
<div class="solution"><p>More be the number of unpaired electrons <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>→</mo></math> more be the magnetic moment.</p><p>and</p><p>Number of unpaired electrons in <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Mg</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>=</mo><mn>0</mn></math></p><p>Number of unpaired electrons in <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Ti</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup><mo>=</mo><mn>1</mn></math></p><p>Number of unpaired electrons in <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi mathvariant="normal">V</mi><mrow><mn>3</mn><mo>+</mo></mrow></msup><mo>=</mo><mn>2</mn></math></p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Fe</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup><mo>=</mo><mn>4</mn></math></p><p>Number of unpaired electrons in</p><p>Thus, <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>Fe</mi><mrow><mn>2</mn><mo>+</mo></mrow></msup></math> show maximum value of magnetic moment <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>(</mo><mi mathvariant="normal">μ</mi><mo>)</mo></math>.</p><p>also, <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">μ</mi><mo>=</mo><msqrt><mi mathvariant="normal">n</mi><mo>(</mo><mi mathvariant="normal">n</mi><mo>+</mo><mn>2</mn><mo>)</mo></msqrt></math>. <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>BM</mo></math> (<math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">n</mi><mo>=</mo></math> Number of unpaired electrons).</p></div>


title: which-of-the-following-solutions-of-kcl-will-have-the-highest-value-of-specific-conductance
slug: which-of-the-following-solutions-of-kcl-will-have-the-highest-value-of-specific-conductance-44186
tags: ['Chemistry', 'Electrochemistry', 'BITSAT', 'BITSAT 2023 (Memory Based Paper 2)']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following solutions of $\mathrm{KCl}$ will have the highest value of specific conductance?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$1.0 \mathrm{~N}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$0.1 \mathrm{~N}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$1.0 \times 10^{-2} \mathrm{~N}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$1.0 \times 10^{-3} \mathrm{~N}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$1.0 \mathrm{~N}$</span> </div>

answer:
<div class="solution">The specific conductance increases with concentration. The number of ions per $\mathrm{cm}^3$ increase with increase of concentration.</div>


title: which-of-the-following-statement-is-a-tautology-2
slug: which-of-the-following-statement-is-a-tautology-2-87487
question: <div class="question">Which of the following statement is a tautology?</div>
tags: ['Mathematics', 'Mathematical Reasoning', 'BITSAT', 'BITSAT 2018']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mi>p</mi><mo>∨</mo><mi>q</mi></mrow></mfenced><mo>∨</mo><mfenced><mrow><mo>~</mo><mi>p</mi></mrow></mfenced></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mo>~</mo><mi>q</mi><mo>∧</mo><mi>p</mi></mrow></mfenced><mo>∨</mo><mfenced><mrow><mi>p</mi><mo>∨</mo><mo>~</mo><mi>p</mi></mrow></mfenced></math></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Both (a) and (b)</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">None of the above</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Both (a) and (b)</span> </div>

answer:
<div class="solution"><p>Truth table</p><table border="1" cellpadding="1" cellspacing="1" style="width: 500px;"> <tbody> <tr> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>q</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>~</mo><mi>p</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>~</mo><mi>q</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mo>∨</mo><mi>q</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>~</mo><mi>q</mi><mo>∧</mo><mi>p</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>p</mi><mo>∨</mo><mo>~</mo><mi>p</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mi>p</mi><mo>∨</mo><mi>q</mi></mrow></mfenced><mo>∨</mo><mfenced><mrow><mo>~</mo><mi>p</mi></mrow></mfenced></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mrow><mo>~</mo><mi>q</mi><mo>∧</mo><mi>p</mi></mrow></mfenced><mo>∨</mo><mfenced><mrow><mi>p</mi><mo>∨</mo><mo>~</mo><mi>p</mi></mrow></mfenced></math></td> </tr> <tr> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> </tr> <tr> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> </tr> <tr> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> </tr> <tr> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">F</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> <td style="text-align: center;"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">T</mi></math></td> </tr> </tbody></table><p>Hence, option (c) is correct.</p></div>


title: which-of-the-following-statement-is-incorrect-regarding-the-equation-mecho-ag-nh-3-2-o-h-mecoo-ag
tags: ['Chemistry', 'Redox Reactions', 'BITSAT', 'BITSAT 2018']
source_db: MarksBatch2_P4.db
slug:
which-of-the-following-statement-is-incorrect-regarding-the-equation-mecho-ag-nh-3-2-o-h-mecoo-ag-40122

question:
<div class="question">Which of the following statement is incorrect regarding the equation<br/><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>MeCHO</mi><mo>+</mo><msup><mfenced close="]" open="["><mrow><mi>Ag</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>2</mn></msub></mrow></mfenced><mo>+</mo></msup><mo>+</mo><mover><mi mathvariant="normal">O</mi><mo>¯</mo></mover><mi mathvariant="normal">H</mi><mo>⟶</mo><msup><mi>MeCOO</mi><mo>-</mo></msup><mo>+</mo><mi>Ag</mi></math></div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">The equivalent weight of <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>MeCHO</mi></math> is <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>22</mn></math> .</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Three moles of <math xmlns="http://www.w3.org/1998/Math/MathML"><mover><mi mathvariant="normal">O</mi><mo>¯</mo></mover><mi mathvariant="normal">H</mi></math> are required in the reaction.</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>MeCHO</mi></math> acts as an oxidising agent.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mfenced close="]" open="["><mrow><mi>Ag</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>2</mn></msub></mrow></mfenced><mo>+</mo></msup></math> gets reduced.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>MeCHO</mi></math> acts as an oxidising agent.</span> </div>

answer:
<div class="solution"><p>Oxidation : <br/><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>3</mn></msub><msup><mi>COO</mi><mo>-</mo></msup><mo>+</mo><mn>3</mn><mover><mi mathvariant="normal">O</mi><mo>¯</mo></mover><mi mathvariant="normal">H</mi><mo>→</mo><msub><mi>CH</mi><mn>3</mn></msub><msup><mi>COO</mi><mo>-</mo></msup><mo>+</mo><mn>2</mn><msup><mi mathvariant="normal">e</mi><mo>-</mo></msup><mo>+</mo><mn>2</mn><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></math></p><p>Reduction : <math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced close="]" open=""><mrow><msup><mfenced close="]" open="["><mrow><mi>Ag</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>2</mn></msub></mrow></mfenced><mo>+</mo></msup><mo>+</mo><msup><mi mathvariant="normal">e</mi><mo>-</mo></msup><mo>⟶</mo><mi>Ag</mi><mo>+</mo><msub><mi>NH</mi><mn>3</mn></msub></mrow></mfenced><mo>×</mo><mn>2</mn></math></p><p><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>3</mn></msub><mi>CHO</mi><mo>+</mo><mn>2</mn><msup><mfenced close="]" open="["><mrow><mi>Ag</mi><msub><mfenced><msub><mi>NH</mi><mn>3</mn></msub></mfenced><mn>2</mn></msub></mrow></mfenced><mo>+</mo></msup><mo>+</mo><mn>3</mn><mover><mi mathvariant="normal">O</mi><mo>¯</mo></mover><mi mathvariant="normal">H</mi><mo>⟶</mo><msub><mi>CH</mi><mn>3</mn></msub><mi mathvariant="normal">O</mi><mover><mi mathvariant="normal">O</mi><mo>¯</mo></mover><mo>+</mo><mn>2</mn><msub><mi mathvariant="normal">H</mi><mn>2</mn></msub><mi mathvariant="normal">O</mi></math></p><p>Molecular mass <math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mi mathvariant="normal">M</mi></mfenced></math> of <math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>CH</mi><mn>3</mn></msub><mi>CHO</mi><mo>=</mo><mn>44</mn><mo> </mo><mi mathvariant="normal">g</mi><mo> </mo><msup><mi>mol</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math></p><p>Equivalent weight <math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mi>Eω</mi></mfenced><mo>=</mo><mfrac><mi mathvariant="normal">M</mi><mrow><mi mathvariant="normal">n</mi><mo>-</mo><mi>factor</mi></mrow></mfrac><mo>=</mo><mfrac><mn>44</mn><mn>2</mn></mfrac><mo>=</mo><mn>22</mn><mo> </mo><mi mathvariant="normal">g</mi><mo> </mo><msup><mi>mol</mi><mrow><mo>-</mo><mn>1</mn></mrow></msup></math></p><p>Since aldehyde is getting oxidised therefore, it is acting as reducing agent and not oxidising agent.</p></div>


title: which-of-the-following-statements-about-vitamin-b12-is-incorrect
slug: which-of-the-following-statements-about-vitamin-b12-is-incorrect-98472
question: <div class="question">Which of the following statements about vitamin B-12 is incorrect?</div>
tags: ['Chemistry', 'Biomolecules', 'BITSAT', 'BITSAT 2009']
answer: <div class="solution">Vitamin $\mathrm{B}_{12}$ does not occur in plants.</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">It has a cobalt atom.</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">It also occurs in plants.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">It is also present in rain water.</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">It is needed for human body in very small amounts.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">It also occurs in plants.</span> </div>


tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2010']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">1,2,3</span> </div>
answer: <div class="solution">All the three statements are correct.</div>
source_db: MarksBatch2_P4.db
title:
which-of-the-following-statements-isare-true-1-ph-5-and-bicl-5-do-not-exist-2-p-d-bond-is-present-in-so-2-3-i-3-has-bent-geometry-4-sef-4-and-ch-4-hav

slug:
which-of-the-following-statements-isare-true-1-ph-5-and-bicl-5-do-not-exist-2-p-d-bond-is-present-in-so-2-3-i-3-has-bent-geometry-4-sef-4-and-ch-4-hav-48695

question:
<div class="question">Which of the following statements is/are true?<br/>1.$\mathrm{PH}_{5}$ and $\mathrm{BiCl}_{5}$ do not exist.<br/>2.$p \pi-d \pi$ bond is present in $\mathrm{SO}_{2}$<br/>3.$\mathrm{I}_{3}^{+}$ has bent geometry.<br/>4.$\mathrm{SeF}_{4}$ and $\mathrm{CH}_{4}$, have same shape.</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">1,2,3</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">1,3</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">1,3,4</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">1,2,4</span> </li> </ul>


title: which-of-the-following-two-are-isostructural-1
slug: which-of-the-following-two-are-isostructural-1-94621
question: <div class="question">Which of the following two are isostructural?</div>
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2009']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$\mathrm{XeF}_{2,} \mathrm{IF}_{2}^{-}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{NH}_{3}, \mathrm{BF}_{3}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{CO}_{3}^{2-}, \mathrm{SO}_{3}^{2-}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{PCI}_{5}, \mathrm{ICI}_{5}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{XeF}_{2,} \mathrm{IF}_{2}^{-}$</span> </div>

answer:
<div class="solution">$\mathrm{XeF}_{2}$ and $\mathrm{IF}_{2}^{-}$ both are linear and have hybridisation $s p^{3} d$.</div>


title: which-of-the-following-will-be-the-most-effective-in-the-coagulation-of-fe-oh-3-soil
slug: which-of-the-following-will-be-the-most-effective-in-the-coagulation-of-fe-oh-3-soil-61994
tags: ['Chemistry', 'Surface Chemistry', 'BITSAT', 'BITSAT 2012']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which of the following will be the most effective in the coagulation of $\mathrm{Fe}(\mathrm{OH})_{3}$ soil?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$\mathrm{Mg}_{3}\left(\mathrm{PO}_{4}\right)_{2}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{BaCl}_{2}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{NaCl}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{KCN}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Mg}_{3}\left(\mathrm{PO}_{4}\right)_{2}$</span> </div>

answer:
<div class="solution">According to Hardy-Schulze rule, coagulation power of ions is directly proportional to charge on ion. $\because \mathrm{Fe}(\mathrm{OH})_{3}$ is positively charged colloid. $\therefore$ It will be coagulated by anion.
<br/>(a) $\mathrm{Mg}_{3}\left(\mathrm{PO}_{4}\right)_{2} \rightleftharpoons 3 \mathrm{Mg}^{2+}+2 \mathrm{PO}_{4}^{3-}$
<br/>(b) $\mathrm{BaCl}_{2} \rightleftharpoons \mathrm{Ba}^{2+}+2 \mathrm{Cl}^{-}$
<br/>(c) $\mathrm{NaCl} \rightleftharpoons \mathrm{Na}^{+}+\mathrm{Cl}^{-}$
<br/>(d) $\mathrm{KCN} \rightleftharpoons \mathrm{K}^{+}+\mathrm{CN}^{-}$
<br/>Because $\mathrm{PO}_{4}^{3-}$ has highest charge among the given anions, therefore, $\mathrm{Mg}_{3}\left(\mathrm{PO}_{4}\right)_{2}$ is the most effective in the coagulation of $\mathrm{Fe}(\mathrm{OH})_{3}$ solution.</div>


title: which-of-the-following-will-form-the-cathode-with-respect-to-iron-anode-in-an-electrolyte-cell
tags: ['Chemistry', 'Solutions', 'BITSAT', 'BITSAT 2010']
answer: <div class="solution">In electrolytic cell the cathode is of higher reduction potential.</div>
source_db: MarksBatch2_P4.db
slug:
which-of-the-following-will-form-the-cathode-with-respect-to-iron-anode-in-an-electrolyte-cell-43479

question:
<div class="question">Which of the following will form the cathode with respect to iron anode in an electrolyte cell?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$\mathrm{Mg}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{Al}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{Cu}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{Zn}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Mg}$</span> </div>


tags: ['Chemistry', 'Aldehydes and Ketones', 'BITSAT', 'BITSAT 2010']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-will-not-form-a-yellow-precipitate-on-heating-with-an-alkaline-solution-of-iodine

slug:
which-of-the-following-will-not-form-a-yellow-precipitate-on-heating-with-an-alkaline-solution-of-iodine-18663

question:
<div class="question">Which of the following will not form a yellow precipitate on heating with an alkaline solution of iodine?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{CH}_{3} \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{3}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{3}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{CH}_{3} \mathrm{OH}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{CH}_{3} \mathrm{OH}$</span> </div>

answer:
<div class="solution">$\mathrm{CH}_{3} \mathrm{OH}$ does not have $-\mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{3}$ group<br/>hence it will not form yellow precipitate with an alkaline solution of iodine (haloform reaction).</div>


tags: ['Chemistry', 's Block Elements', 'BITSAT', 'BITSAT 2023 (Memory Based Paper 1)']
source_db: MarksBatch2_P4.db
title:
which-of-the-following-will-precipitate-first-when-aqueous-solution-containing-sulphate-ions-are-added

slug:
which-of-the-following-will-precipitate-first-when-aqueous-solution-containing-sulphate-ions-are-added-64238

question:
<div class="question">Which of the following will precipitate first when aqueous solution containing sulphate ions are added?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{Mg}^{2+}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{Ca}^{2+}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{Sr}^{2+}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">$\mathrm{Ba}^{2+}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Ba}^{2+}$</span> </div>

answer:
<div class="solution">Down the group solubility of sulphate decreases. Thus, $\mathrm{Ba}^{2+}$ ions will precipitate out most easily.</div>


title: which-of-the-followings-forms-the-base-of-talcum-powder
slug: which-of-the-followings-forms-the-base-of-talcum-powder-93983
question: <div class="question">Which of the followings forms the base of talcum powder?</div>
tags: ['Chemistry', 's Block Elements', 'BITSAT', 'BITSAT 2016']
answer: <div class="solution">Magnesium hydrosilicate forms base of Talcum powder.</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Zine stearate</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Sodium aluminium silicate</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Magnesium hydrosilicate</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Chalk</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Magnesium hydrosilicate</span> </div>


title: which-of-these-is-least-likely-to-act-as-lewis-base
slug: which-of-these-is-least-likely-to-act-as-lewis-base-25594
question: <div class="question">Which of these is least likely to act as Lewis base?</div>
tags: ['Chemistry', 'Ionic Equilibrium', 'BITSAT', 'BITSAT 2010']
answer: <div class="solution">$\mathrm{BF}_{3}$ is Lewis acid (e- pair acceptor)</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{F}^{-}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{BF}_{3}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{PF}_{3}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{CO}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{BF}_{3}$</span> </div>


title: which-one-is-correct-about-fission
slug: which-one-is-correct-about-fission-11881
question: <div class="question">Which one is correct about fission?</div>
tags: ['Physics', 'Nuclear Physics', 'BITSAT', 'BITSAT 2011']
answer: <div class="solution">No Solution available</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Approx. $0.1 \%$ mass converts into energy.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Most of energy of fission is in the form of heat.</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">In a fission of $U^{235}$ about 200 eV energy is released.</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">On an average, one neutron is released per fission of $\mathrm{U}^{235}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Approx. $0.1 \%$ mass converts into energy.</span> </div>


title: which-one-of-given-elements-shows-maximum-number-of-different-oxidation-states-in-its-compounds
tags: ['Chemistry', 'd and f Block Elements', 'BITSAT', 'BITSAT 2015']
source_db: MarksBatch2_P4.db
slug:
which-one-of-given-elements-shows-maximum-number-of-different-oxidation-states-in-its-compounds-10416

question:
<div class="question">Which one of given elements shows maximum number of different oxidation states in its compounds?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$\mathrm{Am}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{Fm}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{La}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Gd</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Am}$</span> </div>

answer:
<div class="solution">Am shows maximum number of oxidation
<br/> <br/>$$
<br/> <br/>\text { states, }+3,+4,+5,+6
<br/> <br/>$$</div>


tags: ['Chemistry', 'Classification of Elements and Periodicity in Properties', 'BITSAT', 'BITSAT 2014']
source_db: MarksBatch2_P4.db
title:
which-one-of-the-following-arrangements-represents-the-correct-order-of-electron-gain-enthalpy-with-negative-sign-of-the-given-atomic-species

slug:
which-one-of-the-following-arrangements-represents-the-correct-order-of-electron-gain-enthalpy-with-negative-sign-of-the-given-atomic-species-90974

question:
<div class="question">Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\quad \mathrm{S}&lt;\mathrm{O}&lt;\mathrm{Cl}&lt;\mathrm{F}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\quad \mathrm{Cl}&lt;\mathrm{F}&lt;\mathrm{S}&lt;\mathrm{O}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\quad \mathrm{F}&lt;\mathrm{Cl}&lt;\mathrm{O}&lt;\mathrm{S}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">$\quad \mathrm{O}&lt;\mathrm{S}&lt;\mathrm{F}&lt;\mathrm{Cl}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\quad \mathrm{O}&lt;\mathrm{S}&lt;\mathrm{F}&lt;\mathrm{Cl}$</span> </div>

answer:
<div class="solution">The amount of energy released when an electron is added to an isolated gaseous atom to produce a monovalent anion is called electron gain enthalpy.
<br/> <br/>Electron affinity value generally increase on moving from left to right in a period however there are exceptions of this rule in the case of those atoms which have stable configuration. These atoms resist the addition of extra electron, therefore the low value of electron affinity $\underset{-1.48}{\mathrm{O}}&lt;\underset{-2.0}{\mathrm{~S}}&lt;\underset{-3.6}{\mathrm{~F}}&lt;\underset{-3.8}{\mathrm{Cl}}$
<br/> <br/>On the other hand $\mathrm{Cl}$, because of its comparatively bigger size than $\mathrm{F}$, allow the addition of an extra electron more easily.</div>


title: which-one-of-the-following-contain-isopropyl-group-2
slug: which-one-of-the-following-contain-isopropyl-group-2-85989
question: <div class="question">Which one of the following contain isopropyl group?</div>
tags: ['Chemistry', 'General Organic Chemistry', 'JEE Main']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">2,2,3,3 -Tetramethylpentane</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">2 -Methylpentane</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">2,2,3 -Trimethylpentane</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">3,3 -Dimethylpentane</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">2 -Methylpentane</span> </div>

answer:
<div class="solution"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/61dNBFBjwvJ1pyBldB15FfyL3Glkb76VGfONqrhzuoI.original.fullsize.png"/></div>


title: which-one-of-the-following-coordination-compounds-is-used-to-inhibit-the-growth-of-tumours
slug: which-one-of-the-following-coordination-compounds-is-used-to-inhibit-the-growth-of-tumours-37510
tags: ['Chemistry', 'Coordination Compounds', 'BITSAT', 'BITSAT 2021']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which one of the following coordination compounds is used to inhibit the growth of tumours?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Trans-platin</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">EDTA complex of calcium</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\left[\left(\mathrm{Ph}_{3} \mathrm{P}\right)_{3} \mathrm{RhCl}\right]$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">Cis - platin</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Cis - platin</span> </div>

answer:
<div class="solution">Cisplatin $\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}_{2}\right]$ is used in cancer treatment.</div>


tags: ['Physics', 'Alternating Current', 'JEE Main']
source_db: MarksBatch2_P4.db
title:
which-one-of-the-following-curves-represents-the-variation-of-impedance-z-with-frequency-f-in-series-lcr-circuit-1

slug:
which-one-of-the-following-curves-represents-the-variation-of-impedance-z-with-frequency-f-in-series-lcr-circuit-1-12594

question:
<div class="question">Which one of the following curves represents the variation of impedance ( $Z$ ) with frequency $f$ in series LCR circuit?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/GGtIsBiQGaY2PLOKHZ5GzOlvnCuBsxwozQTgj7G_BnE.original.fullsize.png"/></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/jM-xNwBH3CODhOPEvYzB7lLDsyr7Do97Ecg6AGDzJwA.original.fullsize.png"/></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/MKqaScywQ4CrVeN0NQq9IlaIHeUavAdfAR1qh_l5sis.original.fullsize.png"/></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/qiqsR7wDYuJEn0iHY0GiZpdRtqIL5HPN1D62lFNuTQs.original.fullsize.png"/></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/MKqaScywQ4CrVeN0NQq9IlaIHeUavAdfAR1qh_l5sis.original.fullsize.png"/></span> </div>

answer:
<div class="solution">$Z=\sqrt{R^{2}+\left(2 \pi \mathrm{fL}-\frac{1}{2 \pi \mathrm{fC}}\right)^{2}}$</div>


tags: ['Physics', 'Alternating Current', 'BITSAT', 'BITSAT 2011']
source_db: MarksBatch2_P4.db
title:
which-one-of-the-following-curves-represents-the-variation-of-impedance-z-with-frequency-f-in-series-lcr-circuit

slug:
which-one-of-the-following-curves-represents-the-variation-of-impedance-z-with-frequency-f-in-series-lcr-circuit-60890

question:
<div class="question">Which one of the following curves represents the variation of impedance ( $Z$ ) with frequency $f$ in series LCR circuit?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/GGtIsBiQGaY2PLOKHZ5GzOlvnCuBsxwozQTgj7G_BnE.original.fullsize.png"/></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/jM-xNwBH3CODhOPEvYzB7lLDsyr7Do97Ecg6AGDzJwA.original.fullsize.png"/></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/MKqaScywQ4CrVeN0NQq9IlaIHeUavAdfAR1qh_l5sis.original.fullsize.png"/></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/qiqsR7wDYuJEn0iHY0GiZpdRtqIL5HPN1D62lFNuTQs.original.fullsize.png"/></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/MKqaScywQ4CrVeN0NQq9IlaIHeUavAdfAR1qh_l5sis.original.fullsize.png"/></span> </div>

answer:
<div class="solution">$Z=\sqrt{R^{2}+\left(2 \pi \mathrm{fL}-\frac{1}{2 \pi \mathrm{fC}}\right)^{2}}$</div>


title: which-one-of-the-following-does-not-follow-octate-rule-1
slug: which-one-of-the-following-does-not-follow-octate-rule-1-91775
question: <div class="question">Which one of the following does not follow octate rule?</div>
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'JEE Main']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{PF}_{3}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\mathrm{BF}_{3}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{CO}_{2}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{CCl}_{4}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{BF}_{3}$</span> </div>

answer:
<div class="solution">$\mathrm{BF}_{3}$ does not follow octate rule because central atom, boron lacks an electron pair. Thus, it also acts as Lewis acid.
<br/> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/FEtEJfwKKzcxm-mq9J5kdgMMbsV7colrfigKqLSvytU.original.fullsize.png"/></div>


title: which-one-of-the-following-exhibits-geometrical-isomerism
slug: which-one-of-the-following-exhibits-geometrical-isomerism-53763
question: <div class="question">Which one of the following exhibits geometrical isomerism?</div>
tags: ['Chemistry', 'General Organic Chemistry', 'BITSAT', 'BITSAT 2023 (Memory Based Paper 2)']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><br/>1,2-Dibromopropene</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><br/>2, 3-Dimethylbut-2-ene</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><br/>2, 3-Dibromobut-2-ene</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data"><br/>Both (a) and (c)</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><br/>Both (a) and (c)</span> </div>

answer:
<div class="solution">Alkenes having double bonds with two different groups on each end of the double bond show geometrical isomerism. $A_2 b_2 c_2, A_2 b_2 c d$, $A_2$ bcde.</div>


tags: ['Physics', 'Electrostatics', 'BITSAT', 'BITSAT 2022']
source_db: MarksBatch2_P4.db
title:
which-one-of-the-following-graphs-represents-the-variation-of-electric-potential-with-distance-r-from-the-centre-of-a-nonconducting-charged-sphere-of-

slug:
which-one-of-the-following-graphs-represents-the-variation-of-electric-potential-with-distance-r-from-the-centre-of-a-nonconducting-charged-sphere-of-11248

question:
<div class="question">Which one of the following graphs represents the variation of electric potential with distance $r$ from the centre of a non-conducting charged sphere of radius $R$ ?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/j2oUTm9NwK9X7IGk8AltfrKVU6IClR6bLmhrUPvV_-s.original.fullsize.png"/><br/></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/STHocV7jR3y4iT5e4FNAokgj48eOy8pakOSjxAkCHmA.original.fullsize.png"/><br/></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/UdUkDzwg2_QufpOqFnrN6-UXSyMiRCNeiMpRPncf2gs.original.fullsize.png"/><br/></span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data"> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/Y1j1Q9fnmIkp2dHi_nBipGNpB0Cfzu96yTOyJvKTypE.original.fullsize.png"/><br/></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/Y1j1Q9fnmIkp2dHi_nBipGNpB0Cfzu96yTOyJvKTypE.original.fullsize.png"/><br/></span> </div>

answer:
<div class="solution">Electric potential at centre $R=0$
<br/>$$
<br/>V_{\text {centre }}=1.5 V_{\text {surface }}
<br/>$$
<br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/JPf3SXkOJwUq0wKVWyoOTmYpnxkuFO7gQ3A73DV-j_8.original.fullsize.png"/><br/> <br/>where,
<br/>$$
<br/>\begin{aligned}
<br/>V_0 &amp; =\frac{k Q}{R} \\
<br/>V_{\text {inside }} &amp; =\frac{k Q}{2 R}\left(3-\frac{r^2}{R^2}\right)
<br/>\end{aligned}
<br/>$$<img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/YwEC8mM2hhxQSxrBswndzaLb6UKhFu6vRLWqOXkmnrU.original.fullsize.png"/><br/></div>


title: which-one-of-the-following-ions-has-the-highest-value-of-ionic-radius-1
slug: which-one-of-the-following-ions-has-the-highest-value-of-ionic-radius-1-54505
question: <div class="question">Which one of the following ions has the highest value of ionic radius?</div>
tags: ['Chemistry', 'Classification of Elements and Periodicity in Properties', 'BITSAT', 'BITSAT 2009']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$\mathrm{O}^{2-}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{B}^{3+}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{Li}^{+}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{F}^{-}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{O}^{2-}$</span> </div>

answer:
<div class="solution">The ionic radii follows the order $\mathrm{O}^{2-}&gt;\mathrm{F}^{-}&gt;\mathrm{Li}^{+}&gt;\mathrm{B}^{3+}$</div>


title: which-one-of-the-following-ions-has-the-maximum-magnetic-moment
slug: which-one-of-the-following-ions-has-the-maximum-magnetic-moment-73459
question: <div class="question">Which one of the following ions has the maximum magnetic moment?</div>
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2021']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{Sc}^{3+}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{Ti}^{3+}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{Cr}^{3+}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">$\mathrm{Fe}^{3+}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{Fe}^{3+}$</span> </div>

answer:
<div class="solution">$\mathrm{Fe}^{3+}\left(d^{5}\right)$ has 5 unpaired electrons therefore magneticmoment $=\sqrt{n(n+2)}=\sqrt{5(5+2)}=5.91$ which is maximum among given options. As $\mathrm{Sc}^{3+}, \mathrm{Ti}^{3+}, \mathrm{Cr}^{3+}$ and $\mathrm{V}^{3+}$ contain $0,1,3$, and 2 number of unpaired electrons respectively.</div>


tags: ['Chemistry', 'Hydrogen', 'BITSAT', 'BITSAT 2022']
source_db: MarksBatch2_P4.db
title:
which-one-of-the-following-is-correct-order-of-given-isotopes-i-t-2-d-2-p-2-order-of-boiling-point-ii-t-2-d-2-p-2-order-of-bond-energy-iii-t-2-d-2-p-2

slug:
which-one-of-the-following-is-correct-order-of-given-isotopes-i-t-2-d-2-p-2-order-of-boiling-point-ii-t-2-d-2-p-2-order-of-bond-energy-iii-t-2-d-2-p-2-52555

question:
<div class="question">Which one of the following is correct order of given isotopes?
<br/>I. $T_2&gt;D_2&gt;P_2$ (order of boiling point)
<br/>II. $T_2&gt;D_2&gt;P_2$ (order of bond energy)
<br/>III. $T_2=D_2=P_2$ (order of bond length)
<br/>IV. $T_2 &lt; D_2 &lt; P_2$ (order of reactivity with $\mathrm{Cl}_2$ )</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"> <br/>I and II
<br/></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"> <br/>III and IV
<br/></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"> <br/>II, III and IV
<br/></span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data"> <br/>All of these</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"> <br/>All of these</span> </div>

answer:
<div class="solution">Protium $(P)$, deuterium $(D)$ and tritium $(T)$ are the three isotopes of hydrogen. These isotopes follow the order in different contexts as shown below :
<br/>$T_2&gt;D_2&gt;P_2$ [Order of boiling point (BP)]
<br/>$T_2&gt;D_2&gt;P_2$ [Order of bond energy $\left.(\mathrm{BE})\right]$
<br/>$T_2=D_2=P_2$ [Order of bond length $\left.(\mathrm{BL})\right]$
<br/>$T_2 &lt; D_2 &lt; P_2$ [Order of reactivity with $\mathrm{Cl}_2$ ]
<br/>Hence, all the given order are correct.</div>


title: which-one-of-the-following-is-correct-regarding-h
slug: which-one-of-the-following-is-correct-regarding-h-71471
question: <div class="question">Which one of the following is correct regarding $\Delta \mathrm{H}:$</div>
tags: ['Chemistry', 'Thermodynamics (C)', 'BITSAT', 'BITSAT 2009']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\quad \Delta \mathrm{H}=\Delta \mathrm{E}+2 \mathrm{RT}$</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$\quad \Delta \mathrm{H}=\Delta \mathrm{E}-2 \mathrm{RT}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\Delta \mathrm{H}=\Delta \mathrm{E}+\mathrm{RT}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\quad \Delta \mathrm{H}=\Delta \mathrm{E}-\mathrm{RT}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\quad \Delta \mathrm{H}=\Delta \mathrm{E}-2 \mathrm{RT}$</span> </div>

answer:
<div class="solution">$\mathrm{N}_{2}+3 \mathrm{H}_{2} \rightleftharpoons 2 \mathrm{NH}_{3}$<br/>According to thermodynamics's Ist law<br/>$$<br/>\Delta \mathrm{H}=\Delta \mathrm{E}+\mathrm{nRT}<br/>$$<br/>Where $\Delta \mathrm{H}=$ enthalpy of reaction at constant pressure $\Delta \mathrm{E}=$ heat of reaction at constant volume $\mathrm{R}=$ molar gas constant<br/>$$<br/>\begin{array}{l}<br/>\mathrm{T}=\text { temperature of the reaction } \\<br/>\mathrm{n}=(\text { no. of moles of product })-(\text { no. of moles }<br/>\end{array}<br/>$$<br/>of reactant.) From reaction, $\mathrm{n}=\mathrm{n}_{\mathrm{p}}-\mathrm{n}_{\mathrm{R}}=2-4=-2$<br/>Hence, $\Delta \mathrm{H}=\Delta \mathrm{E}-2 \mathrm{RT}$.</div>


tags: ['Mathematics', 'Vector Algebra', 'BITSAT', 'BITSAT 2010']
source_db: MarksBatch2_P4.db
title:
which-one-of-the-following-is-the-unit-vector-perpendicular-to-both-vecahatihatjhatk-and-overrightarrowmathrmbhatmathrmihatmathrmjhatmathrmk

slug:
which-one-of-the-following-is-the-unit-vector-perpendicular-to-both-vecahatihatjhatk-and-overrightarrowmathrmbhatmathrmihatmathrmjhatmathrmk-61411

question:
<div class="question">Which one of the following is the unit vector perpendicular to both \(\vec{a}=-\hat{i}+\hat{j}+\hat{k}\) and \(\overrightarrow{\mathrm{b}}=\hat{\mathrm{i}}-\hat{\mathrm{j}}+\hat{\mathrm{k}}\) ?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">\(\frac{\hat{\mathrm{i}}+\hat{\mathrm{j}}}{\sqrt{2}}\)</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">\(\hat{\mathrm{k}}\)</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">\(\frac{\hat{\mathrm{j}}+\hat{\mathrm{k}}}{\sqrt{2}}\)</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">\(\frac{\hat{\mathrm{i}}-\hat{\mathrm{j}}}{\sqrt{2}}\)</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">\(\frac{\hat{\mathrm{i}}+\hat{\mathrm{j}}}{\sqrt{2}}\)</span> </div>

answer:
<div class="solution">According to question \(\mathrm{a}=-\hat{i}+\hat{j}+\hat{k}\) and \(\mathrm{b}=\hat{i}-\hat{j}+\hat{k}\)<br/>Then, \(\mathrm{a} \times \mathrm{b}=\left|\begin{array}{lll}\hat{i} &amp; \hat{j} &amp; \hat{k} \\ -1 &amp; 1 &amp; 1 \\ 1 &amp; -1 &amp; 1\end{array}\right|\)<br/>\(\begin{gathered}<br/>=\hat{i}[1+1]-\hat{j}[-1-1]+\hat{k}[1-1]=2(\hat{i}+\hat{j}) \\<br/>\quad \text { and }|\mathrm{a} \times \mathrm{b}|=\sqrt{4+4}=2 \sqrt{2}<br/>\end{gathered}\)<br/>\(\therefore \text { Required unit vector }= \pm \frac{2(\hat{i}+\hat{j})}{2 \sqrt{2}}= \pm \frac{\hat{i}+\hat{j}}{\sqrt{2}}\)</div>


title: which-one-of-the-following-molecular-hydrides-acts-as-a-lewis-acid-1
slug: which-one-of-the-following-molecular-hydrides-acts-as-a-lewis-acid-1-33359
question: <div class="question">Which one of the following molecular hydrides acts as a Lewis acid?</div>
tags: ['Chemistry', 'Ionic Equilibrium', 'BITSAT', 'BITSAT 2023 (Memory Based Paper 1)']
answer: <div class="solution">Boron in $\mathrm{B}_2 \mathrm{H}_6$ is electron deficient</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{NH}_3$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{H}_2 \mathrm{O}$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$\mathrm{B}_2 \mathrm{H}_6$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\mathrm{CH}_4$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{B}_2 \mathrm{H}_6$</span> </div>


title: which-one-of-the-following-molecules-will-form-a-linear-polymeric-structure-due-to-hydrogen-bonding
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2021']
answer: <div class="solution">HF form linear polymeric structure due to hydrogen bonding.</div>
source_db: MarksBatch2_P4.db
slug:
which-one-of-the-following-molecules-will-form-a-linear-polymeric-structure-due-to-hydrogen-bonding-44861

question:
<div class="question">Which one of the following molecules will form a linear polymeric structure due to hydrogen bonding?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\mathrm{NH}_{3}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{H}_{2} \mathrm{O}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{HCl}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">$\mathrm{HF}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{HF}$</span> </div>


title: which-one-of-the-following-monomers-gives-the-polymer-neoprene-on-polymerization
slug: which-one-of-the-following-monomers-gives-the-polymer-neoprene-on-polymerization-43886
tags: ['Chemistry', 'Polymers', 'BITSAT', 'BITSAT 2014']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which one of the following monomers gives the polymer neoprene on polymerization?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\quad \mathrm{CF}_{2}=\mathrm{CF}_{2}$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{CH}_{2}=\mathrm{CHCl}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{CCl}_{2}=\mathrm{CCl}_{2}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">\(\mathrm{CH}_2=\stackrel{\huge\mathrm{Cl} \atop \huge |}{\mathrm{C}}-\mathrm{CH}=\mathrm{CH}_2\)</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">\(\mathrm{CH}_2=\stackrel{\huge\mathrm{Cl} \atop \huge |}{\mathrm{C}}-\mathrm{CH}=\mathrm{CH}_2\)</span> </div>

answer:
<div class="solution"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/X4qfeUbKSRDltCxBPMRbmnrHznA-Rl_puW08dXSsBAg.original.fullsize.png"/></div>


title: which-one-of-the-following-pairs-is-isostructural-ie-having-the-same-shape-and-hybridization
slug: which-one-of-the-following-pairs-is-isostructural-ie-having-the-same-shape-and-hybridization-51804
tags: ['Chemistry', 'Chemical Bonding and Molecular Structure', 'BITSAT', 'BITSAT 2014']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which one of the following pairs is isostructural (i.e., having the same shape and hybridization)?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$\left[\mathrm{BCl}_{3}\right.$ and $\left.\mathrm{BrCl}_{3}^{-}\right]$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\left[\mathrm{NH}_{3}\right.$ and $\left.\mathrm{NO}_{3}^{-}\right]$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\left[\mathrm{NF}_{3}\right.$ and $\left.\mathrm{BF}_{3}\right]$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">$\left[\mathrm{BF}_{4}^{-}\right.$ and $\left.\mathrm{NH}_{4}^{+}\right]$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\left[\mathrm{BF}_{4}^{-}\right.$ and $\left.\mathrm{NH}_{4}^{+}\right]$</span> </div>

answer:
<div class="solution">$\mathrm{BF}_{4}^{-}$ hybridisation $\mathrm{sp}^{3}$, tetrahedral structure.
<br/> <br/>$\mathrm{NH}_{4}^{+}$ hybridisation $s p^{3},$ tetrahedral structure.</div>


title: which-one-of-the-following-pairs-is-not-correctly-matched-5
slug: which-one-of-the-following-pairs-is-not-correctly-matched-5-42720
question: <div class="question">Which one of the following pairs is not correctly matched?</div>
tags: ['Chemistry', 'Aldehydes and Ketones', 'BITSAT', 'BITSAT 2012']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$&gt;\mathrm{C}=\mathrm{O} \rightarrow&gt;\mathrm{CH}_{2}$ (Clemmensen reduction)</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">$&gt;\mathrm{C}=\mathrm{O} \rightarrow&gt;\mathrm{CHOH}$ (Wolf-Kishner reduction)</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$-\mathrm{COCl} \rightarrow-$ CHO (Rosenmund reduction)</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$-\mathrm{C} \equiv \mathrm{N} \rightarrow-\mathrm{CHO}$ (Stephen reduction)</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$&gt;\mathrm{C}=\mathrm{O} \rightarrow&gt;\mathrm{CHOH}$ (Wolf-Kishner reduction)</span> </div>

answer:
<div class="solution">Like clemmensen reduction, Wolf-Kishner reduction involves reduction of $&gt;\mathrm{C}=\mathrm{O}$ to $&gt;\mathrm{CH}_{2},$ of course by different reagent.</div>


tags: ['Chemistry', 'Hydrocarbons', 'BITSAT', 'BITSAT 2013']
source_db: MarksBatch2_P4.db
title:
which-one-of-the-following-reactions-is-expected-to-readily-give-a-hydrocarbon-product-in-good-yields

slug:
which-one-of-the-following-reactions-is-expected-to-readily-give-a-hydrocarbon-product-in-good-yields-96540

question:
<div class="question">Which one of the following reactions is expected to readily give a hydrocarbon product in good yields?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$\mathrm{RCOOK} \frac{\text { Electrolytic }}{\text { oxidation }}$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\mathrm{RCOO}^{-} \mathrm{Ag}^{+} \stackrel{\mathrm{Br}_{2}}{\longrightarrow}$</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{CH}_{3} \mathrm{CH}_{3} \frac{\mathrm{Cl}_{2}}{\mathrm{hu}}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$\left(\mathrm{CH}_{3}\right)_{3} \mathrm{CCl} \stackrel{\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}}{\longrightarrow}$</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{RCOOK} \frac{\text { Electrolytic }}{\text { oxidation }}$</span> </div>

answer:
<div class="solution">Electrolysis of a concentrated aqueous solution of either sodium or potassium salts of saturated carboxylic acids yields higher alkane at anode.
<br/> <br/>$$
<br/> <br/>2 \mathrm{RCOOK} \underset{\text { Oxidation }}{\text { Electrolytic }}{\longrightarrow} \underset{\text { Anode }}{2 \mathrm{RCOO}^{-}}+\underset{\text { Cathod }}{2 \mathrm{~K}^{+}}
<br/> <br/>$$
<br/> <br/>At anode $2 \mathrm{RCOO}^{-} \rightarrow 2 \mathrm{RCOO}+2 \mathrm{e}^{-} \longrightarrow$
<br/> <br/>$$
<br/> <br/>\mathrm{R}-\mathrm{R}+2 \mathrm{CO}_{2}
<br/> <br/>$$
<br/> <br/>At Cathode $2 \mathrm{~K}^{+}+2 \mathrm{e}^{-} \rightarrow 2 \mathrm{~K}$
<br/> <br/>$$
<br/> <br/>2 \mathrm{~K}+\mathrm{H}_{2} \mathrm{O} \rightarrow 2 \mathrm{KOH}+\mathrm{H}_{2} \uparrow
<br/> <br/>$$
<br/> <br/>(Kolbe's Method)</div>


title: which-one-of-the-following-statements-in-relation-to-the-hydrogen-atom-is-correct
slug: which-one-of-the-following-statements-in-relation-to-the-hydrogen-atom-is-correct-52678
tags: ['Chemistry', 'Hydrogen', 'BITSAT', 'BITSAT 2022']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which one of the following statements in relation to the hydrogen atom is correct?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data"> <br/>$3 s, 3 p$ and $3 d$-orbitals all have the same energy.
<br/></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data"> <br/>$3 s$ and $3 p$-orbitals are of lower energy than $3 d$-orbital.
<br/></span> </li><li class=""> <span class="option-label">C</span> <span class="option-data"> <br/>$3 p$-orbital is lower in energy than $3 d$-orbital.
<br/></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"> <br/>$3 s$-orbital is lower in energy than $3 p$-orbital.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"> <br/>$3 s, 3 p$ and $3 d$-orbitals all have the same energy.
<br/></span> </div>

answer:
<div class="solution">The hydrogen atom has the configuration $1 s$ and $3 s, 3 p$ and $3 d$-orbitals will have same energy with respect to $1 s$-orbital.</div>


title: which-one-of-the-following-statements-is-correct-8
slug: which-one-of-the-following-statements-is-correct-8-20842
question: <div class="question">Which one of the following statements is correct?</div>
tags: ['Chemistry', 'd and f Block Elements', 'BITSAT', 'BITSAT 2010']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">From a mixed precipitate of $\mathrm{AgCl}$ and $\mathrm{AgI}$, ammonia solution dissolves only $\mathrm{AgCl}$.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Ferric ions give a deep green precipitate on adding potassium ferrocyanide solution.</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">On boiling a solution having $\mathrm{K}^{+}, \mathrm{Ca}^{2+}$ and $\mathrm{HCO}_{3}^{-}$ ions we get a precipitate of $\mathrm{K}_{2} \mathrm{Ca}\left(\mathrm{CO}_{3}\right)_{2}$</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Manganese salts give a violet borax bead test in the reducing flame.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">From a mixed precipitate of $\mathrm{AgCl}$ and $\mathrm{AgI}$, ammonia solution dissolves only $\mathrm{AgCl}$.</span> </div>

answer:
<div class="solution">Ammonia can dissolve ppt. of AgCl only due to formation of complex as given below:<br/>$$<br/>\mathrm{AgCl}+2 \mathrm{NH}_{3} \rightarrow\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right] \mathrm{Cl}<br/>$$</div>


title: which-one-of-the-following-statements-is-false-3
slug: which-one-of-the-following-statements-is-false-3-45832
question: <div class="question">Which one of the following statements is false?</div>
tags: ['Chemistry', 'Solutions', 'BITSAT', 'BITSAT 2009']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">The correct order of osmotic pressure for 0.01 M aqueous solution of each compound is $\mathrm{BaCl}_{2}&gt;\mathrm{KCl}&gt;\mathrm{CH}_{3} \mathrm{COOH}&gt;$ sucrose.</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">The osmotic pressure $(\pi)$ of a solution is given by the equation $\pi=\mathrm{MRT}$, where $\mathrm{M}$ is the molarity of the solution.</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Raoult's law states that the vapour pressure of a component over a solution is proportional to its mole fraction.</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">Two sucrose solutions of same molality prepared in different solvents will have the same freezing point depression.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Two sucrose solutions of same molality prepared in different solvents will have the same freezing point depression.</span> </div>

answer:
<div class="solution">$\Delta \mathrm{T}_{\mathrm{f}}=\mathrm{K}_{\mathrm{f}} \times \mathrm{m} \times \mathrm{i}$. Since $\mathrm{K}_{\mathrm{f}}$ has different values<br/>for different solvents, hence even if the $\mathrm{m}$ is the same $\Delta \mathrm{T}_{\mathrm{f}}$ will be different.</div>


title: which-one-the-following-graphs-represents-the-behaviour-of-an-ideal-gas
slug: which-one-the-following-graphs-represents-the-behaviour-of-an-ideal-gas-81531
question: <div class="question">Which one the following graphs represents the behaviour of an ideal gas</div>
tags: ['Physics', 'Thermodynamics', 'BITSAT', 'BITSAT 2009']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/znSP2S0MM0DqzhXl625W8pqoqSIUGKMTJBSdMSwh9h0.original.fullsize.png"/></span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/IhGDT8MzM7d989PPCi4gZdb52VLgL6e1udaXx0m2-94.original.fullsize.png"/></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/Ro6BtD5CIv8coVaHvFirbNcZkPaZ3QIW5zfR4LAVgE8.original.fullsize.png"/></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/7sHJBwG3e1QlJL-cMZuNBlEXjaDHW7m3KaCJz2Nek50.original.fullsize.png"/></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/IhGDT8MzM7d989PPCi4gZdb52VLgL6e1udaXx0m2-94.original.fullsize.png"/></span> </div>

answer:
<div class="solution">For an ideal gas $\mathrm{PV}=$ constant i.e., $\mathrm{PV}$ does not vary with $\mathrm{V}$.</div>


title: which-one-the-following-removes-temporary-hardness-of-water
slug: which-one-the-following-removes-temporary-hardness-of-water-85293
question: <div class="question">Which one the following removes temporary hardness of water?</div>
tags: ['Chemistry', 'Hydrogen', 'BITSAT', 'BITSAT 2015']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Slaked lime</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$\quad$ Plaster of Paris</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Epsom</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Hydrolith</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Slaked lime</span> </div>

answer:
<div class="solution">This method is known as Clark's process. In this method temporary hardness is removed byadding lime water or milk of lime.
<br/> <br/>$$
<br/> <br/>\mathrm{Ca}(\mathrm{OH})_{2}+\mathrm{Ca}\left(\mathrm{HCO}_{3}\right)_{2} \longrightarrow \underset{\mathrm{ppt} .}{2 \mathrm{CaCO}_{3}} \downarrow+2 \mathrm{H}_{2} \mathrm{O}
<br/> <br/>$$</div>


title: which-statement-is-incorrect-about-peptide-bond-1
slug: which-statement-is-incorrect-about-peptide-bond-1-76135
question: <div class="question">Which statement is incorrect about peptide bond?</div>
tags: ['Chemistry', 'Biomolecules', 'BITSAT', 'BITSAT 2013']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">$\mathrm{C}-\mathrm{N}$ bond length in proteins is longer than usual $\mathrm{C}-\mathrm{N}$ bond length.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Spectroscopic analysis shows planar structure of 
<br/> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/OrpMWh5WojSOZ2jV_NOfD8AmJPUN9CUm6OKCd2Hq4L4.original.fullsize.png"/><br/> bond.</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">$\mathrm{C}-\mathrm{N}$ bond length in proteins is smaller than usual $\mathrm{C}-\mathrm{N}$ bond length.</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">None of these</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">$\mathrm{C}-\mathrm{N}$ bond length in proteins is longer than usual $\mathrm{C}-\mathrm{N}$ bond length.</span> </div>

answer:
<div class="solution">Due to resonance,
<br/> <br/><img src="https://cdn-question-pool.getmarks.app/pyq/bitsat/Yw-QMaS3GE_T2sAna8rRZZp6TMTIfKFsRJrxg4JG6F0.original.fullsize.png"/><br/> <br/> <br/>bond acquires some double bond character, hence shorter in length.</div>


